MBP crashing

(Cross-posted to Mac and PC Games.)

I very, very rarely had apps crash when using Tiger or Leopard, but since I recently upgraded to Snow Leopard (I know, I'm so current), it's been an increasingly regular experience. The OS itself has crashed/frozen a good dozen times since upgrading a couple of months ago, as well, which easily equals the number of times the same thing happened with previous OSes in the five years I had it pre-SL. Overall, Snow Leopard has been a pretty disheartening experience.

Especially since I can't play Diablo! Just finished installing D2 and it immediately crashes every time upon launch. Model A1211 MBP. The crash report is attached as a txt file; hopefully someone here can diagnose the issue.

 

I believe I recall installing it somewhat recently, yes.