Hello, This post is both a thank you to Acronis, and a request for help. I have built a new PC with two new SATA drives (one Western Digital, one Seagate). I backed up one drive to the other using Acronis 10, then ran verify. Acronis says the archive is corrupt. At first, I thought ATI must be buggy, especially after reading some of the posts on this forum, but I ran some tests of my own. If I create a large, 2GB .RAR file, and copy it between drives with the "COPY /V" switch, twice (out of at least 200 tries) COPY will say there was an ERROR! I have been using computers for almost 20 years, and building them for 15. I have never had an issue with data corruption - that I know of! I am incredibly depressed about this. By seeing the "COPY /V" fail, I know that the issue CAN NOT be a flaw with Acronis's verify, but an issue with my new computer. I would never have caught this if it weren't for ATI's very thorough verification process! Thank you! Can anyone help me solve this issue? I've tested both drives with the DOS-based diagnostic boot disks from WD & Seagate, full scan, no errors. I've run Memtest+ for 8 hours, no errors. Prime95 and Orthos for 8 hours, no errors. There are no error messages in the Windows XP (SP3) event log. I'm using the latest drivers. I don't know what else to do! I don't have access to other hardware to help in testing (ie different motherboard, power supply or RAM). Again, thank you to Acronis for spotting this error before I moved my data to these drives, and thanks in advance to anyone who can help me.