Hey all, I need to figure out what model MBP I have (e.g. Axxxx). Yes, I know it (was) written on the underside next to the battery case BUT, it is no longer legible (worn completely away). It's a 17" MPB3,1 Intel Core 2 Duo 2.4Ghz (bus 800Mhz) it's about 4 years old, but can't remember exactly. help?