Something's not right with IE 7. Your report is among hundreds in the forums.
Why not use something else?
I followed the recent recommendation to install zone alarm and the jury is still out. It is very tiresome having to give permission for access, but the most irritating thing is that when I close IE7 XP puts up a message saying it will have to close IE7 and do I want to send a report to MS. I don't and I'd like to stop this intervention.