I had this running pretty well for a couple days. Now, I get a crash about 5 minutes into DotA. Sometimes it shows an Access Violation, other times I don't get any output.
I've tried with and without compiz, but it's a very reliable crash.
Linux spectre 2.6.28-sabayon #1 SMP Wed Mar 11 14:25:13 UTC 2009 x86_64 Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz GenuineIntel GNU/Linux