Here's the specs:

• ASP.NET 3.5 using ASP.NET AJAX
• AJAX Control Toolkit
• jQuery 1.3.2
• web services
• IIS6 on Windows Server 2003 SP1
• SP1 SQLServer 2005 SP3 Site is SSL

Here's the problem: I'm getting the White Screen of Death (WSOD) in pretty much any browser (at least FireFox and IE 7/8).

We have an application that uses one popup window for updating records. Most of the time when you click on the [Edit] button to edit a record, the popup window opens and loads the update page. However, after editing records for a while, all of a sudden the popup window will open, but it stays blank and just hangs. The URL is in the address bar.

Loading up Fiddler I noticed that the request for the update page is never sent which leads me to believe it's some kind of lockup on the client-side. If I copy the same URL that's in the popup window into a new browser window, the page generally loads fine.

Observations: - Since the request is never sent to the server, it's definitely something client-side - Only appears to happen when there is some semblance of traffic on the site which is weird because this appears to be contained within client-side code - There is a web service being called in the background every few seconds checking if the user is logged on, but this doesn't cause the freeze.

I'm really at a loss here. I've googled WSOD but not much seems to appear related to my specific WSOD. Any ideas?