Sounds like the MBR is corrupted, You can always restore everything from the System image you made. Just put the recovery disk in the DVD drive and restore.
If you can't get it sorted, take it along to Roy at Akita Consoles,
387 Poulton Rd, Wallasey CH44 4DD. He's the cheapest repair guy I know and very willing.
At the very least, he'll tell you what's wrong with them.
Phone 0772 572 1413
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