Glad you found the solution, but I didn't mean BUY another computer - I meant connect it to a different computer ! Even if it meant lugging it round to a friend's house.
Two points. The capacitors you are talking about are what are called electrolytic capacitors and they are polarity conscious. You will see that they are marked with + and - poles. Make sure you put the new ones in the correct way round if you are doing it yourself. If you put them in the wrong way round it makes a lovely bang and their lifespan can be measured in milliseconds - I know, I've done it !
The other, once you are up and running again it can do no harm to check for updates for your video drivers.