http://bugs.winehq.org/show_bug.cgi?id=25256
--- Comment #41 from Roberto Sten_Gun benfi@hotmail.it 2011-03-14 03:37:40 CDT --- I've done some tests about this in a machine with this specs: proc: Intel core 2 quad q 9550 2.6 ghz ram: 4gb ddr3 mainboard: asus p5q3 video: radeon HD 4870 1gb gddr5 3x hd western digital SATA 320gb os: Ubuntu 10.10 x64 kernel: 2.6.32.2 with BFS and BFQ patches. so: Playing TF2 and Left 4 dead (wich are the only 2 games I tested yet) with gameoverlay enabled does not crash my game. I can use overlay and chat without any problem at all (despite bad performance on ATI cards). Maybe is a Nvidia related problem?