Sweetness! I found a page on Microsoft that described my problem and gave a solution. (The article can be found here .)

I put in my XP installation CD and went into the Recovery Module. The problem fixed itself when I used the chkdsk /r command. Now I'm back up and running and backing up all my Poker info. Phew! [img]/images/graemlins/cool.gif[/img]

Thanks to everyone that provided me with advice.