Ciao a tutti,
da qualche giorno ho dei problemi con la scheda audio, o meglio XP ha dei problemi con la scheda audio.
Si sente malissimo dalle casse e parlando al micro è la stessa cosa, il fatto è che sullo stesso pc ho una partizione con ubuntu e lì l'audio si sente bene, quindi il problema non penso sia qualcosa di hardware.
Ho fatto tutte le scansioni necessarie per vedere se c'era un qualche malware ma il problema persiste. Se può essere utile vi posto il log di hijackthis.

Logfile of HijackThis v1.99.1
Scan saved at 11.17.49, on 18/11/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16544)

Running processes:
E:\WINDOWS\System32\smss.exe
E:\WINDOWS\system32\winlogon.exe
E:\WINDOWS\system32\services.exe
E:\WINDOWS\system32\lsass.exe
E:\WINDOWS\system32\svchost.exe
E:\WINDOWS\System32\svchost.exe
E:\WINDOWS\system32\spoolsv.exe
E:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
E:\Program Files\Common Files\McAfee\HackerWatch\HWAPI.exe
E:\PROGRA~1\McAfee\MSC\mcmscsvc.exe
e:\program files\common files\mcafee\mna\mcnasvc.exe
E:\PROGRA~1\McAfee\VIRUSS~1\mcods.exe
E:\PROGRA~1\McAfee\MSC\mcpromgr.exe
e:\PROGRA~1\COMMON~1\mcafee\redirsvc\redirsvc.exe
E:\PROGRA~1\McAfee\VIRUSS~1\mcshield.exe
E:\PROGRA~1\McAfee\VIRUSS~1\mcsysmon.exe
E:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
E:\Program Files\McAfee\MPF\MPFSrv.exe
E:\WINDOWS\system32\nvsvc32.exe
E:\WINDOWS\System32\PAStiSvc.exe
E:\WINDOWS\system32\svchost.exe
E:\WINDOWS\Explorer.EXE
e:\PROGRA~1\mcafee.com\agent\mcagent.exe
E:\WINDOWS\system32\RUNDLL32.EXE
E:\Program Files\Java\jre1.6.0_02\bin\jusched.exe
E:\WINDOWS\SOUNDMAN.EXE
E:\Program Files\DAEMON Tools\daemon.exe
E:\WINDOWS\system32\rundll32.exe
E:\Program Files\QuickTime\qttask.exe
E:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe
E:\WINDOWS\system32\spool\drivers\w32x86\3\hpztsb0 7.exe
E:\Program Files\HP\HP Software Update\HPWuSchd2.exe
E:\Program Files\Messenger\msmsgs.exe
E:\WINDOWS\system32\ctfmon.exe
E:\Program Files\HP\Digital Imaging\bin\hpqtra08.exe
F:\Program Files\eMule\emule.exe
E:\Program Files\HP\Digital Imaging\bin\hpqSTE08.exe
E:\Program Files\Mozilla Firefox\firefox.exe
E:\Program Files\MSN Messenger\msnmsgr.exe
E:\Program Files\MSN Messenger\usnsvc.exe
E:\Documents and Settings\Luca Taboni\Desktop\Security\HijackThis.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,ProxyOverride = *.local
O2 - BHO: Supporto di collegamento per Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - E:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: Skype add-on (mastermind) - {22BF413B-C6D2-4d91-82A9-A0F997BA588C} - E:\Program Files\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O2 - BHO: BitComet ClickCapture - {39F7E362-828A-4B5A-BCAF-5B79BFDFEA60} - E:\Program Files\BitComet\tools\BitCometBHO_1.1.2.7.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - E:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - E:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O2 - BHO: scriptproxy - {7DB2D5A0-7241-4E79-B68D-6309F01C5231} - e:\PROGRA~1\mcafee\VIRUSS~1\scriptcl.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE E:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [SunJavaUpdateSched] "E:\Program Files\Java\jre1.6.0_02\bin\jusched.exe"
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [DAEMON Tools] "E:\Program Files\DAEMON Tools\daemon.exe" -lang 1033
O4 - HKLM\..\Run: [NeroCheck] E:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [BluetoothAuthenticationAgent] rundll32.exe bthprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM\..\Run: [QuickTime Task] "E:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE E:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [!AVG Anti-Spyware] "E:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe" /minimized
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "E:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [HPDJ Taskbar Utility] E:\WINDOWS\system32\spool\drivers\w32x86\3\hpztsb0 7.exe
O4 - HKLM\..\Run: [HP Software Update] E:\Program Files\HP\HP Software Update\HPWuSchd2.exe
O4 - HKCU\..\Run: [MSMSGS] "E:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [ctfmon.exe] E:\WINDOWS\system32\ctfmon.exe
O4 - Global Startup: HP Digital Imaging Monitor.lnk = E:\Program Files\HP\Digital Imaging\bin\hpqtra08.exe
O8 - Extra context menu item: Download all links using BitComet - res://E:\Program Files\BitComet\BitComet.exe/AddAllLink.htm
O8 - Extra context menu item: Download all videos using BitComet - res://E:\Program Files\BitComet\BitComet.exe/AddVideo.htm
O8 - Extra context menu item: Download link using &BitComet - res://E:\Program Files\BitComet\BitComet.exe/AddLink.htm
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - E:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - E:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O9 - Extra button: Skype - {77BF5300-1474-4EC7-9980-D32B190E9B07} - E:\Program Files\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - E:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - E:\Program Files\Messenger\msmsgs.exe
O11 - Options group: [INTERNATIONAL] International*
O12 - Plugin for .spop: E:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {4ED9DDF0-7479-4BBE-9335-5A1EDB1D8A21} - http://download.mcafee.com/molbin/sh...1/mcinsctl.cab
O16 - DPF: {BCC0FF27-31D9-4614-A68E-C18E1ADA4389} - http://download.mcafee.com/molbin/sh...26/mcgdmgr.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/ge...sh/swflash.cab
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - E:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: ms-help - {314111C7-A502-11D2-BBCA-00C04F8EC294} - E:\Program Files\Common Files\Microsoft Shared\Help\hxds.dll
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - E:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - E:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O20 - Winlogon Notify: WgaLogon - E:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - E:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: AVG Anti-Spyware Guard - GRISOFT s.r.o. - E:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: McAfee E-mail Proxy (Emproxy) - McAfee, Inc. - E:\PROGRA~1\COMMON~1\McAfee\EmProxy\emproxy.exe
O23 - Service: McAfee HackerWatch Service - McAfee, Inc. - E:\Program Files\Common Files\McAfee\HackerWatch\HWAPI.exe
O23 - Service: McAfee Update Manager (mcmispupdmgr) - McAfee, Inc. - E:\PROGRA~1\McAfee\MSC\mcupdmgr.exe
O23 - Service: McAfee Services (mcmscsvc) - McAfee, Inc. - E:\PROGRA~1\McAfee\MSC\mcmscsvc.exe
O23 - Service: McAfee Network Agent (McNASvc) - McAfee, Inc. - e:\program files\common files\mcafee\mna\mcnasvc.exe
O23 - Service: McAfee Scanner (McODS) - McAfee, Inc. - E:\PROGRA~1\McAfee\VIRUSS~1\mcods.exe
O23 - Service: McAfee Protection Manager (mcpromgr) - McAfee, Inc. - E:\PROGRA~1\McAfee\MSC\mcpromgr.exe
O23 - Service: McAfee Redirector Service (McRedirector) - McAfee, Inc. - e:\PROGRA~1\COMMON~1\mcafee\redirsvc\redirsvc.exe
O23 - Service: McAfee Real-time Scanner (McShield) - McAfee, Inc. - E:\PROGRA~1\McAfee\VIRUSS~1\mcshield.exe
O23 - Service: McAfee SystemGuards (McSysmon) - McAfee, Inc. - E:\PROGRA~1\McAfee\VIRUSS~1\mcsysmon.exe
O23 - Service: McAfee Personal Firewall Service (MpfService) - McAfee, Inc. - E:\Program Files\McAfee\MPF\MPFSrv.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - E:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Pml Driver HPZ12 - HP - E:\WINDOWS\system32\HPZipm12.exe
O23 - Service: STI Simulator - Unknown owner - E:\WINDOWS\System32\PAStiSvc.exe