Fixing the Master Boot Record may be in order.
Boot to a command prompt using the [F8] key or hold down [Ctrl] while booting. Choose Command Prompt Only. If that doesn't work, use a Windows Start Up disk. At the command prompt type
using a space in place of the underscore ( _ ) used here. Nothing will appear to happen, and after a few seconds you'll either get another command prompt, or a message saying fdisk couldn't access the drive.
If you get the "couldn't access" message, you'll have to repartition the drive, or possibly use a program like Partiton Magic.
A couple things I'm curious about:
Did you install any new software or hardware? Was any recently installed software downloaded off the internet?
Have you gotten any emails from unfamiliar sources with attachments?
The reason is, sometimes when you suddenly lose partitions it's the result of a virus. I would say boot the computer with an emergency boot disk that came with or was made for your virus scanner and see if it comes up with anything. Then try the fdisk /mbr route.
Eagles may soar, but weasels don't get sucked into jet engines!
Note: Please post your questions on the forums, not in my email.
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