Erratic Vertical Blue lines on Screen
Ok so I just replaced my logic board (did it my self becase my warranty was up & didn't want to send $1200 to have apple fix it). Now that it is replaced the computer works, but now I have these vertical blue lines going up & down my screen, i say it's erratic because some parts of my browser stays "normal" while other parts have these lines going up & down. After browsing through some of the discussion boards I am more confused then when I started, some people say it's a software issue, some say it's the screen & some say it's the NVIDIA graphics card. I ran apple's extended hardware test & everything comes up fine. If it is a software issue how can I resolve it. I also read something about needing to apply more thermal paste to the logic board. Again i'm confused & would like these lines to go away. Can someone please lead me in the right direction so I can finally have my laptop working properly & not need glasses! Thanks
MacBook Pro 15", Mac OS X (10.5.8), 2008 Santa Rosa