It's been a bad week for me, too. I found one motherboard filled with capacitors opened up like popcorn (like ten of them!) and another machine with a dead PSU.

How do you repair the video cards? Are you also replacing the bad caps?

Good that you got your investment back.. I'm in so much loss that I doubt can recover with the current BTC value. Actually, at this point it barely pays for the power bill. Maybe once the weather cools I can get heating from them