I have a graphire2 too, and I don't know why, but it lagged a little when I drawed... The CPU activity increased while I was painting fast with low pressure... Maybe a bad software that "disturbed" my graphire
Now it works fine, even when I paint fast
Another thing I find weird: the drivers on the wacom website are older than the drivers on the CD ! Maybe it's because I was on the europeans website...
Well, the drivers are just cool, but I think some options are a little bit messy... I won't playing around with these options again, like shortcuts assigned to a button