Not sure if this is the right place for this, but I'll try anyways. I recently upgraded to a 2011 MBP and have little reason to hang on to my old 2007 MBP. The computer is in great condition and hasn't had any *knock on wood* video card problems yet. But I do have a concern that if I sell it and the video card starts acting up that the buyer may want a refund. Any recommendations on how to handle this? Full disclosure in the ad and let buyer know all sales are final or sell for a slightly reduced price knowing it's a potential time bomb?