Last year I had to replace my mobo and was advised in two different forums that the OEM version of WinME won't boot unless I installed an identical mobo from same mfr (Dell Dimension 4100). Fortunately Overstock.com had good deal on exact Dell board and the replacement worked out of the box. Now my hard drive is making some intermittant clicking noises and I want to replace it before it dies. I routinely backup my drive image to an 80gb WD external hd (I use AI 9.0). Although restoring a drive image *should* work just fine, I guess I'm a bit paranoid since I've never done this before and want to make sure I won't run into problems restoring the OS image to another hard drive. Can someone confirm before I purchase the replacement drive? Thanks! David PS: I don't have any partitions on my original drive, and will probably replace it with same model drive (WD400BB).