I occasionally have the screen whine while in Xp Pro on my MPB early '08, but regardless of that fact, I would love to install some new drivers for it. I downloaded the latest for my model from Nvidia's website, but when ever I open it I get the Nvidia background, then an error message that says "Setup couldn't find any drivers that are compatible with your current hardware" or something very close to that. I have heard of many Boot camp users installing these drivers with success. Whats my issue? Can you guys also send me the proper link for the drivers just in case I got the wrong ones? Macbook Pro 10.5.5 Penryn GeForce 8600 Gt 256 MB VRAM. Running XP Professional SP3 on a NTFS 31 GB partition with about 28 GB free. Thanks!