The graphics card (ATI X1600) in my 2006 Core Duo MBP is failing... hence, the logic board needs to be replaced. I would just get a new computer, but I'd rather keep and repair this one for now - my parents will take ownership of it in June to replace their 2003 eMac - at which point I can take advantage of Apple's back to school promotion to get a new 13" MBP (starting for professional degree). I have a few questions: 1) How much will a logic board replacement cost? I've read on these forums anywhere from $300 - $1,500. Which is accurate? 2) When a logic board replacement is done by Apple, are any other parts, such as the Airport Card, swapped as well? I did an 802.11n upgrade, and would really rather Apple not touch my Airport Card. I also upgraded the RAM - is any of this an issue? Thanks so much!