I have changed out motherboards (spacewalker 440lx) 128k ram, adaptec 2940UW (new) scsi adapter (3 scsi hard drives) but when I go to reinstall win95a, or hardware that requires cab file data I get this error. Even from dos. I have found hundreds of people on different forums that have same problem, all different configurations. Its driving me nuts. Only thing others have said was bad ram, bad cache or bad mboard.