right at the moment i'm using 5.3....but i don't know what's best for the x-series cards. i really don't think it's your card. guess the big question is how does it run everything else? my friends gateway i always thought was a lesser machine but after i installed the x700 for him, it actually runs everthing i've tried in it a little better than mine, with more eye candy. including games like half life 2 and call of duty 2. O and yes, with 24 pixel pipelines and 1200 mhz memory clock, the 7800gt would perform a little better, if you can go by the numbers. and i like that cpu(xp2300+)...it was in the first machine i built, it always seemed to run better at 120f plus though and i never found out why
