A discussion thread on Apple
A discussion thread on Apple, which began March 1 revealed that many experienced users of its MacBook Pro GPU during freezing construction applications. A user was able to identify the problem to the discrete Radeon GPU for AMD. Freezing seemed to occur when the CPU-intensive applications coincided with the operation of applications that caused Mac OS X to automatically switch graphics processor Intel integrated graphics to the GPU Sandy Bridge.
Informs the user can reproduce this problem on every floor model MacBook Pro in the Apple store. Apple said the issue as a priority in its domestic support base, but believes that the problem lies in the firmware of the GPU. This Mac OS X 10.6.7 update is believed to solve the problem. If you experience problems with your MacBook Pro in early 2011, the update has been posted for you?