[Brian]

Unfortunately, this looks like we crashed in WebCore code, not in our own code. The crash you sent in a few days before was our own code - it looks like we died in the process of checking your site preferences for the cookie settings. The one before that was another WebCore crash.

I'm not sure it's related, but can you try disabling the SIMBL plugins on your system and see if that has any effect? I'm hardly a SIMBL expert, but I'm confused why an iChat plugin like chax is loading into our memory space, but there it is.