I found this little gem over at hardocp.com. I know next to nothing about it, but a quick skim over the instructions looks like its pretty easy. Its a software only modification (just using a hacked driver) so I guess its minimal danger, but remember that you do this at your own risk and if you wreck your equipment techspot can't be held responsible. Not that I think that that's likely but all the same its worth saying.
Find the details and links here.
Good luck!