Hello everybody, I am trying to help a friend troubleshoot some blue screen issues that they are having, hopefully somebody can help me. Here is some info on their issue. ((Stop message 0x000000D1 Descriptive text: DRIVER_IRQL_NOT_LESS_OR_EQUAL The computer has rebooted from a bugcheck. The bugcheck was: 0x100000d1 (0xe1ce8000, 0x00000002, 0x00000000, 0xb2aa5125). A dump was saved in: C:\WINDOWS\Minidump\Mini062809-01.dmp. They get this error when they try to play a game called Battlefield 2142, they can play other games like team Fortress 2 and do not have the issues. These issues did not start untill they installed a second NVIDIA video card & ran them in SLI mode. Their OS is Win XP SP3 32 Bit if that matters at all. I can get any more information if it is needed, any help you guys can provide would really be appreciated.