Yesterday, someone (Monarch?) commented about a memory leak when the dashboard is kept up, so I left my desktop running overnight logged in to both our 7.404 production (software) and my 7.480 ASG220. This morning, I found that both windows looked like the attachment.
In both cases, I tried to refresh with [F5] and Ctrl+[F5] to no avail. I edited the URL so that I could resubmit it in the same window -> nix! The only way I could get the complete login screen to appear was to open a new window.
IE 7.0.5730.13 on Windows XP SP3
Cheers - Bob