Hi, I've been having a problem with mouse flicker and found a solution that works great for me and thought I'd share it here.
In the <head> section of your pages that have flicker issues, paste the following code:
<script language="javascript">
try {
document.execCommand("BackgroundImageCache", false, true);
} catch(err) {}
</script>
This actually even speeds up the processing time of your pages. I've tested it with a few Telerik controls - specifically the tab control which I had horrible flicker issues with and it fixed the problem. Note that the effect of this on other image based controls is unknown to me at this time(specifically graph rendering controls etc.).
If you are using Telerik Controls with DotNetNuke, edit the "Default.aspx" page and paste the code into the <head> section and it resolves the issue in IE6.
This solution was provided by Mister-Pixel.com at:
http://www.mister-pixel.com/#Content__state=is_that_simpleThanks,
Michael Iacoviello