I just ran a virus program (Avast!) on my system and it detected exactly ONE file infected with a virus. The file was a backup image (MyBackup.tib). My virus program gave me the options of deleting or quarantining the file. Of course, I deleted the file and proceeded to make annother backup image. My guess is that the backup image file with the virus was made when there were one or more viruses on the boot drive that were later removed. It may seem obvious, but I would certainly recommend running a virus scan BEFORE creating a backup image. BTW, I just ran a virus scan on the newly created MyBackup.tib and found it virus free.