Running Win 7 HP 64Bit, AMD,4GigRAM, 320 HD, and using Seagate 1TB GoFlex external: When reaching 25% of the backup the computer locks and has to be rebooted [w/o completing a back-up]. I have tried Acronis TI 2010 and also the trial version of Acronis 2012 with the same results.
I have installed the 2010 version w/o issues on several other computers. I posted over on the Acronis thread, but no response.
Try a different hard drive?
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Try colonezilla, or if you think it's the drive, use that same drive on the other computers. Could be the computer hard-drive as well. Run a BIOS or low-level hardware scan on the PC hard-drive (not just check disk from Windows).
Do u have enough space on the HDD for the back up??