[Kristian2]

Thanks again for all your advice.
I will probably go for an Nvidia card this time (to be on the safe side). As of the nvidia card I mentioned earlier I read somewhere that a power supply of 400W was not a bad idea considering its power consumption. Well I have a 350W power supply and a P4 3GHz processor and since I bought them recently I will wait a while for another upgrade and thus have to look for a videocard that is performance wise more or less in balance with my cpu. With a relatively underperforming cpu you don't get a better overall performance, I suppose. I don't know how one determines this, but probably an nvidia card that compares with a 9800 pro or something like that I think. If I can still obtain such a card that is.
An overheating videocard was not the case as with the Omegadrivers the screen goes black within one minute or so (and then the game continues judging on the sound).