Hi, I had this problem for a while now but it is really starting to get on my nerves, the problem is with a blue screen that appears after intial startup. The system is running Vista Ultimate and just after logging in there is the chance that the following error appears: DRIVER_IRQL_NOT_LESS_OR_EQUAL STOP:0x000000D1 (0x012AA67D, 0x00000001, 0x00000001, 0x8E05FD07) inspect.sys - address 8E0SFD07 base at 8E05D000, Datestamp 4834413F Along with the error above there is information on how to resolve the problem such as removing newly installed hardware, but I haven't installed anything. I have looked around for a similar problem which someone did and they updated their drivers. I tried this by updating the graphic drivers from the NVIDIA site and this did actually work for about two weeks but now its back. The chance of this problem appearing is strange because after logging in it sometimes appears and others it doesn't, however after restarting the system once the error has appeared it performs normally as if it never appeared. Some have similar problems in which a virus has caused the problem but I have tried scanning the drives but there are no problems with them. Thank You for your help.