Tad:
Sound sliek it was in memory, and the power loss caused Windows to corrupt it. Load it anyway and see whats changed. If its totally gone, your only choice
is to copy your backup copy. (That I know you never made..) into the folder. Windows, on a power loss, (like any OS really) can destroy files that are still in memory. Luckily, it doesnt occur frequenctly, but it does happen..
Sorry
Art