After reading this Forum for sometime and finding out that it is possible to upgrade the Late 2008 unibody macbook to 8gb of ram, I decided to buy some ram and try it out for myself. I ended up buying this ram (http://www.amazon.com/Kingston-Memory-Module-KTA-MB1066K2-8G/dp/B001PS9UKW) After reading the good reviews and hearing it worked on many late 2008 unibody Macbooks. The install of the ram went prefectly fine i followed the instructions that apple provided. Then when I got everything put back together i started my macbook back up and it wouldn't boot, all i got was a white/grey screen with the apple logo on it. After a few attemps to boot I decided that i would put my old ram in and see if it was just bad ram i got. Now my macbook won't even boot with my old ram. Now i have ran out of ideas on how to fix my macbook. Can you guys please help?