I've been having tremendous difficulty backing up my drives. I keep getting the following atapi and volsnap source errors in event view - atapi - The driver detected a controller error on \Device\Ide\IdePort0. volsnap - The shadow copies of volume C: were aborted because of an IO failure on volume C:. Is anyone experiencing this? I've tried just about everything - using different ports, reformatting my destination drive, checking for drive errors. How can I avoid this everytime I do a back up? It seems to be a recurring problem - please help.