Hey Guys I bought a MBP 2.53Ghz in late 2008 and I have been having the 9400m flashing issue. I have had a new logic-board and screen then the screen again because they gave me a screen with dead pixels and the issue continued with the 9400m. Then another logic-board. I finally get it back and the battery cover was loose and the screen was bowing. So I just got it back and the issue is still there. I have tried PRAM and reinstalls. I am getting really peed at taking it back all the time. So far I have spent over 10 hours on trains and plus time waiting in the store. I used my computer tonight and I have the same 9400m screen flicker. I have never had an issue with Apple products outside a minor iPhone glitch with Japanese language and I have been a user for about 5 years now. I have Applecare and while they are being helpful (and the stores are too) they are not doing their jobs. Should I start being a little more direct (by that I mean angry but polite) to get them to do the job? So far; 2 x logic-board 2 x screen (3 if you count the dodge one) 1 x battery cover This is all on top of the issues I had at release with the dirty screens (2 computers).