No there is no driver update,
The reason i was looking for it was because i have a 19" Phillips screen, it works fine in OSX (adjusts to max resolution) but when i use it in XP (Bootcamp) if i use a resolution higher than 1024 x 768 the desktop area is beyond the screen size E.g. have to scroll around to see different parts of the desktop. Ive been told this is because of the overlay settings but don't seem to have option in my ATI settings so it was suggested that i need a new driver. Any one else had this or know how to fix it?