Started getting many BSODs yesterday while playing multiplayer games. Nothing new was installed or modified recently. Many mentions of ntoskrnl.exe. I've scanned for system file integrity, and it passed. Updating to the latest NVIDIA drivers didn't do much. Here's the BlueScreenView Report. This computer has ran Vista x64 for a long time with no problems, then Windows 7 x64 (with many problems), and back to a clean install of Vista x64 (with a flawless record till today).