Hi guys, first post! I have a question about selling my old MacBook Pro. Computer was working fine (albiet a little beat up) but the battery was trash. I purchased a new battery and installed it but the laptop doesn't recognize it. When I turn the computer on while plugged into an outlet I now get the Folder/Question Mark icon, so I'm hoping it didn't mess up my 750GB hard drive I had in there too. Anyways, I just wanted to ask, is it worth it to invest the money to fix it (personally), part it out, or to just sell it AS-IS for parts. I know when I purchased it I maxed it out, and that it was the last version of the MBP they made with a matte screen (not sure if that's desirable; it was to me), and the screen is flawless. Below are the stats: MacBook Pro 15" (mid 2010) Model# A1286 15" Matte Screen (1680 x 1050) 2.66GHz Intel Core i7 8GB 1067 MHz DDR2 Memory 750GB 5400RPM Hard Drive Intel HD Graphics with 256MB of DDR3 SDRAM and Nvidia GeForce GT 300M with 512MB of GDDR3 SD RAM Thank you for your help!