Problema classi tabelle Internet explorer

[grifis78]

Ciao a tutti ragazzi,

il problema è semplice ma non ho trovato soluione spulciando i diversi 3d di questa sezione. Semlicemente ho questa tabella:

<table width="100%" cellspacing="5" cellpadding="1">
  <tr>
    <td class="cella1 centrato testogrigio">cavoli</td>
  </tr>
</table> 

ed ecco le classi associate:

.cella1 {
    border: solid #242539 1px;
    background-color: #50527D;
}

.centrato {
    text-align:center;
}

.testogrigio {
    color:#999999;
} 

Il testo risulterà centrato, grigio, ma il background ed il border della classe cella1 non saranno visibili ma con Firefox si! C'è sicuramente un conflitto di classi nel mio file css, infatti la cosa funziona se elimino tutte le altre... potreste darci un occhio? Davvero non trovo l'errore...

html,body{
    margin:0;
    padding: 0;
    background-color: #242539;
    
}
body{
    font-family: arial,sans-serif;
    font-size: 76%;
}

div#container{ /*nessuna regola necessaria*/
    position: relative;
}

/*BARRA MENU*/
div#barramenu { 
    background-image: url([url]images/barragrigia.jpg[/url]);
    color: #242539;
    position: relative;
    padding-left: 10px;
    padding-right: 10px;
    padding-top:2px;
    height: 30px;
}

div#barramenu p {
    margin: 0px 0px 0px 0px;
    padding: 0px 0px 0px 0px;
} 


/* HEADER */
div#header{
    background-image: url([url]images/testata2.jpg[/url]);
    height: 184px;
    word-spacing: 5px;
    color: #E0DDBC;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
    line-height: 12px;
    padding-left: 50px;
    
}


/*BARRA NAVIGAZIONE SX */

div#navigaziosesx{
    color: #FFFFFF;
    font-size:16px;
    float:left;
    /* Inizia il Simplified Box Model Hack */
    width:130px; /* Dimensioni per Opera 5 */
    width:130px; /* Dimensioni per Explorer 5.x */
    width:130px; /* Dimensioni per browser standard compliant */
    padding:0 0 0 0px;
    
    /*height: 1300px;*/
    font-family: Arial, Helvetica, sans-serif;
    font-style: normal;
    /*line-height: normal;*/
    font-weight: bold;
    text-align: left;
}


div#navigaziosesx p {
    background-image:url(images/menusx.gif);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
    line-height: 45px;
    width:130px;
    font-weight: bold;
    font-variant: normal;
    text-indent: 5px;
    padding: 1px;
    padding-bottom:0px;
    padding-top:0px;
    margin-top: 15px;
    margin-right: 30px;
    margin-bottom: 0px;
    margin-left: 1px;
}


/*BARRA DX */

div#barradx {
    float:right;
    width:176px; /* Dimensioni per Opera 5 */
    width:176px;  /* Dimensioni per Explorer 5.x */
    width:176px;
    
}

div#barradx p {
    background-image:url(images/menudx.gif);
    line-height:50px;

}



#container #barradx table {
    width:150px;
    border: solid 5px #50527D;
    background-color:#50527D;
    margin-left: auto;
    margin-right: auto;
    font-size:12px;
    color:#999999;
    
}

#container #barradx td {
    height:20px;
    padding-bottom:5px;
    padding-top:5px;
    padding-left:5px;
    padding-right:5px;
    vertical-align:middle;
    position:relative;
}

#container #barradx td input {
    width:60px;
}


/*CONTENT */

div#content{
    font-family: "Trebuchet MS";
    font-size: 14px;
    color: #242539;
    font-weight: normal;
    margin:0 176px 0 130px;
    padding:1em 20px;
    position: relative;
    background-color: #CCCCCC;
}




/*FOOTER */
div#footer {
    text-align: center;
    font-family:Arial, Helvetica, sans-serif;
    color:#999999;
    font-size:12px;
}

div#footer a {
    color:#99FF00;
}



/*VARIE */    
div.clearer{clear: left}


h1{color:#242539; margin:0; padding:0; text-align:center;}

h2{
    color:#242539;
    font-size:1.5em;
    text-align:center;
}

h3{
    color:#242539;
    text-align:center;
    vertical-align:middle;
}



A:link { color: #000033; }
A.navigazionesx {
    text-decoration:none;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
    font-weight: bold;
    color: #000000;
    
} 
A:visited { color: #000033; }
A:hover { color: #666666; }
A:active { color: #000033; }

#container #navigaziosesx a {
    color: #CCCCCC;
    font-family: Georgia, "Times New Roman", Times, serif;
    font-size:16px;
    text-decoration:none;
}

a.linkapulsante {
    background-color:#525383; 
    color:#FFFFFF; 
    vertical-align: middle; 
    text-decoration:none; 
    padding:3px 3px 3px 3px; 
    border:solid 1px #FFFFFF;
}


.giustificato {
    text-align:justify;
    font-family: Arial, Helvetica, sans-serif;
}

.centrato {
    text-align:center;
    font-family: Arial, Helvetica, sans-serif;
}

.centratov {
    vertical-align:middle;
}

.destra {
    text-align:right;
    font-family: Arial, Helvetica, sans-serif;
}

.sinistra {
    text-align:left;
    font-family: Arial, Helvetica, sans-serif;
}



.Stile1 {
    color: #000033;
    font-style: italic;
    font-weight: bold;
    text-align: center;
}

.Stile2 {color: #000033; text-align: center;}

img {
    border: 0;
}

.testoblu {
    color: #242539;
}

.testoblu14 {
    color: #242539;
    font-size:14px;
}

.testogrigio {
    color:#999999;
}

.testobianco16 {
    color: #FFFFFF;
    font-family: Georgia, "Times New Roman", Times, serif;
    font-size:16px;
}

.sfondorosa {
    background-color:#525383;
}

.bordoblu {
    border: solid 5px #50527D;
}

.grassetto {
    font-weight:bold;
}

a.linkpiccolo {
    font-size:11px;
    color:#FFFFFF;
}
    
    

.tablesinistra {
    margin-left: 10%;
}

.tablecentrata {
    margin-left: auto;
    margin-right:auto;
}

.tablecontent {
    border: solid 1px #50527D;
    font-size:12px;
    color: #999999;
    
}

.tablecontenttd {
    border-left: solid 1px #50527D;
    border-right: solid 1px #50527D;
    border-bottom: solid 1px #50527D;
    padding-bottom:5px;
    padding-top:5px;
    padding-left:5px;
    padding-right:5px;
    vertical-align:middle;
    margin-bottom:auto;
    margin-top:auto;
    margin-left:auto;
    margin-right:auto;
    position:relative;
    
    
}



input.text {
    font: bold 12px Arial, Helvetica, sans-serif;
    color: #242539;
    background: #FFFFFF;
    text-align: left;
    width: 100px;
    border: 1px solid #242539;
}

.input2 {
    font: bold 12px Arial, Helvetica, sans-serif;
    color: #242539;
    background: #FFFFFF;
    text-align: center;
    width: 30px;
    border: 1px solid #242539;
}

input.pulsante {
    font: bold 12px Arial, Helvetica, sans-serif;
    color: #242539;
    background: #999999;
    text-align: center;
    width: 60px;
    border: 1px solid #242539;
}

input.pulsante2 {
    font: bold 12px Arial, Helvetica, sans-serif;
    color: #242539;
    background: #999999;
    text-align: center;
    width: 120px;
    border: 1px solid #242539;
}
    


/*TABELLA CATALOGO */


.imgsinistra {
    float:left;
    margin-right: 15px;
    border: solid #242539 2px;
    
}


.imgdestra {
    float:right;
    margin-left: 15px;
    border: solid #242539 2px;
}


.imgcentrato {
    text-align: center;
    border: solid #242539 2px;
    
}


.bordonero {
    border:solid 1px #000000;"
}

.cella {
    border: solid #242539 1px;
    padding:5px 5px 5px 5px;
    font-size:16px;
}

.cella0 {
    border: solid #242539 10px;
    background-color: #50527D;
}

.cella1 {
    border: solid #242539 1px;
    background-color: #50527D;
}




.cella2 {
    border: solid #242539 1px;
    background-color: #242539;
}

.cella3 {
    border: solid #242539 1px;
    background-color: #999999;
    
}

.cella480 {
    width: 480px;
    height: 320px;
}

.cella480p {
    width: 480px;
    height: 480px;
}

.cella350 {
    width: 350px;
}
.cella300 {
    width: 300px;
}

.cella250 {
    width: 250px;
}


.cella200 {
    width: 200px;
}

.cella150 {
    width: 150px;
}

.cella140 {
    width: 140px;
}

.cella100 {
    width: 100px;
}

.cella80 {
    width: 80px;
}

.cella70 {
    width: 70px;
}

.cella50 {
    width: 50px;
}

.cella30 {
    width: 30px;
} 

Inoltre, la cosa funziona se modifico al volo lo stile mettendo <td style="...>.
Aiuto....

[grifis78]

riporto in alto, scusate il doppio post ma è importante...