My computer totally crashed while using Sidekick. After I got it running again, sidekick would not open, and would continually cause the computer (win xp) to freeze. so I reloaded sidekick 98, and the patches. It opened right up. Then I went to retrieve my card files, and they all were retrievable except for one. I keep getting the error message "not a valid card file". Also, all my calendar data seems to have disappeared. Any idea where it might be? I'm stumped. I need this card file I can't open with all my business numbers. And I've got years of data on the calendar. Help is appreciated