We don't really know why the transparent antialiasing causes such issues. in fact, if you look the KLAX manual on page 12 ( "Design Notes" ) we suggest turn it off, it used to be a real problem on ATI card, with disappearing objects and such, but maybe latest drivers have brought up the issue on nVidia too.
Note that, what ATI calls "Adaptive Antialiasing or AAA", it's the same as the "Transparency Antialiasing" on nVidia.
Hi, I'm having the same problem with KLAX. I have an ATI card and I need help finding that AAA setting. Is it in the Catalyst Control Center? Thank You!