I think with reseating your cards he means this:
Power off your PC, disconnect you PC, touch the central heating of your house, or disable possible static charges on your body otherwise (there are tools for this).
Unplug your card, and put it back into the slot (I gues you should put it into the same slot again). And unplug all plugs in the system, and replug them the same way they were when you started.
-\"If you try to fail, and you succeed, did you fail at all?\"