iframe {
background-color: transparent;
}
According to MSDN this is worng, though it looks like its correct.
Generally a DOM property called TRANSPARENCY is to be set to true as IE considers it as false by default.
<IFRAME src="albumtree.php?albumName=<?=$albumName?>" width="100%" height="100" frameborder="0" allowTransparency="true"</IFRAME>
THis should solve the problem.
Usually setting of TRANSPARENCY=true will solve the problem. If it wont then using of allowTransparency=true should be the solution for your problem.
BR//
Harsha Narayana