I recently upgraded the Voodoo3 in my computer to a 64 MB GeForce 2 MX. Now, whenever I try to play SoF2 the screen freezes up and the computer crashes after 5 or so minutes of playing. I'm thinking this is because the new graphics card is overheating or that my power supply is inadequete. Anyone have any suggestions as to how to ascertain the problem and what I have to buy to solve it (some kind of cooling fan perhaps?)?