Acronis has suddenly started hanging when I've configured it to backup whole disk partitions to portable hard drives, like the Apricorn EZ-Lite. It hangs and won't cancel the process. When I reboot, it retries the backup. I actually have to get into Safe Mode, load Acronis, and delete the backup set to stop it. I've tried uninstalling and reinstalling, but the problem persists. Oddly, I have no trouble backing up to these USB drives with another package, like SecondCopy. So they're fully writeable.