[TxMt] TextMate crashes on startup every time

I use TextMate at work and love it, but on my home computer it crashes upon startup. (Both machines are running 10.3.8.) I've tried both 1.0.2 and the beta release. After some research, I find that my problem is practically identical to this one...

http://lists.macromates.com/pipermail/textmate/2005-February/003009.html

...which is why I won't include a crash log unless it's requested, since as far as I can tell mine is the same as his. Unfortunately, the problem never seemed to get resolved. I imagine there's some sort of conflict with something I've installed previously, but I'm not inclined to uninstall things one by one just to see what happens.

Are there any ideas as to what could be the problem?

Andrew Dupont