Hi All, I'm fairly new to macs, bought a mac pro 2 X 2.8 Quad harpertown a month ago. It's working great running OS X and Vista with bootcamp. I use it for video editing, Avid and FCP. Now, I'm trying to upgrade it, so I just bought an Nvidia Quadro FX 1700 graphics card, without realising it's not supported in OS x. I've read on a Hackintosh forum that there is a complex patching process to make OS x run this card, but I'm a bit worried it will mess up the whole install. Is there any way of using this card? can I run it as a second card? Can I use it in Vista but have OS x ignore it and continue to use Ati? Are there any options? Many thanks, Magnus ps. It's an ebay job, so I don't think return is really possible.