Inserimento dati db access tramite form

[alasque]

Ciao a tutti,

perchè continua a darmi questo errore.....

Microsoft OLE DB Provider for ODBC Drivers error '80004005'

[Microsoft][ODBC Microsoft Access Driver] '(unknown)' is not a valid path. Make sure that the path name is spelled correctly and that you are connected to the server on which the file resides.

/a_ver_disp.asp, line 31

lo script è il seguente:

<%
a=request.form("nome")
b=request.form("cognome")
c=request.form("telefono")
'apro la connessione
set OBJdbConnection=Server.CreateObject("ADODB.Connection")
OBJdbConnection.Open "driver={Microsoft Access Driver (*.mdb)};dbq=./mdb-database/Prenota.mdb"
Set rs=server.CreateObject("ADODB.Recordset")
rs.Open "richiestedati",OBJdbConnection,3,3
rs.AddNew
rs("nome")=a
rs("cognome")=b
rs("telefono")=c
rs.update
rs.Close
OBJdbConnection.Close
%>

Grazie anticipate