My setup is this: I have Vista Ultimate, Acronis True Image 11. I use a Icy ESATA caddie & hard drive to take regular backups of my system, I have been able to restore my system with the above with no problems. The question I have is this: The hard drive in the above caddie is getting almost full and I was wondering if I would be be able to replace the hard drive with a larger size (1TB) and basically just transfer the old images/backups that are stored on my present backup (external hard drive) over on to the new 1TB hard drive. Or could there be problems as the backups were originally created with a different hard drive. Thanks.