I admit I don't know exactly what I'm doing here but hopefully you can help. I purchased above version on a disk at Best Buy and installed it about 2 mo. ago on my laptop (xp sp2 120 gb hd and 2 gb ram) and promptly did a complete backup to a dvd-r, took 2 discs. 2 weeks later I did another backup and did the validation. Both showed corrupted! I completely uninstalled the version I had and downloaded the latest build 8053. Did another full backup and validated and also corrupted. I have Zone Alarm Security Suite. Am I supposed to deactivate my antivirus and firewall when I do backup or can anybody out there shed some light on what I may be doing wrong? Help!