At present I am running a 250W athlon approved power supply - enlight case. However, I have had some instability problems and I achieve a dreadful 3dmark score (1500) with my Gforce2MX. Is it possible that I am running our of power. I have 4 40gig maxtors Athlon 1GHz 512Mg creative sound and a network card in my machine. what else may be the problem?