[TYPO3] printversion error in IE

[Bas van der Togt]

Hello list,

I'm using the code below it's working in Firefox but i get an error in 
IE (Error. Reason: File "index.php" was not found). does anybody know 
how to solve this? I'm using REALURL by the way.

# Print
temp.Print = COA
temp.Print {
   wrap = <td align="right" width="100%" class="buttonheading"><a 
href="#" onclick='window.open("index.php|", "print", 
"width=800,height=600,left=0,top=0,scrollbars=yes,menubar=yes, 
resizable=1");'><img src="fileadmin/templates/images/printButton.png" 
alt="Afdrukken" align="middle" name="Afdrukken" border="0" 
/></a></td></tr></table>
   1 = TEXT
   1.data = field:uid
   1.wrap = ?id=|&type=98
   2 = TEXT
   2.data = GPvar:tx_ttnews|tt_news
   2.wrap = &tx_ttnews[tt_news]=|
}

Your help would be great!
Cheers,
Bas