I have what looks like the same problem using W98.
I have a Web page with frames that lists DWF files in the left hand frame, and loads the DWFs in the centre frame, with additional details on the DWF loaded into a bottom frame.
If I scroll the bottom frame I get the same problems as you described.
I found that if my bottom frame was using the
tag, then I got this problem. I changed to the heading tag and it seems ok.
BUT, I do get almost constant Explorer errors now when using this new Express version, which means all my IE sessions are closed, it is the Ingore or Close error.
Anyone getting any of these errors?
Thanks.