It dosnt help? lol.
In some benchmarks 1 x 3870X2 in XP is faster than 2 x 3870X2 in Vista.
So it's ok to run XP, essentally disabling 1 card, but getting a higher score? Thats all I want to know, coz I can get better scores also if I do this. Just seems kinda stupid to submit as crossfire then tho don't it.