Safari 4 Constant Crashing after about 1 minute

[rhomsy]

I can't figure out why Safari crashes after about a minute after launch. It doesn't crash when I log in as another user. I deleted the plist files, and the cache, but it doesn't help. I uninstalled Safari 4 and it crashed immediately on launch with Safari 3. I reinstalled Safari 4, and it once again crashed after about a minute. I deleted everything in ~/Library/Safari. I repaired permissions. It still crashes. Firefox works flawlessly.

What should I do next? This is the first time in about 10 years that I can't seem to diagnose a problem on my mac. Very frustrating. Does someone have any idea what I should do next?

 

[rhomsy]

Also, if I leave the crashed app alone for about 30 minutes or so, it appears to "unfreeze". I can them use it for about 10 seconds and then it crashes again.