Hi, can anyone tell me how to overcome a boot problem. When starting a computer that has not been used for some time it fails to boot from any disk i.e. floppy, hard drive or CD. It gets so far then this message appears, corrupted file dac2w2k.sys even with Windows XP setup floppies. It gets to the GeForce splash screen then just keeps repeating to this point. I have downloaded the offending file and have it on floppy I can get into the BIOS but do not know how to delete the file and replace with new one.HELP!!