If you have an AMD Athlon, and if Windows often hangs when you run a game, it could be due to the memory allocated by the video adapter driver having become corrupted. Use the following edit to correct this.
Navigate to:
HLM\SYSTEM\CurrentControlSet\Control\Session
Manager\Memory Management
Create a new DWORD called LargePageMinimum and set it to 0xffffffff in hexadecimal. Restart Windows and hope for the best! The problem described above is known to occur with the NVIDIA GeForce 256 and the Matrox G400 video adapters on AMD Athlon processors.
It might be applicable to other cards as well.
