When I try to open Guild Wars, Warcraft, or Starcraft the screen is always filled with these strange blue lines. Sometimes they revert back to normal, but after about 30 seconds the screen has the blue lines again. I've tried updating my driver, but I've no luck. So if anyone has a solution please post it in this topic... I'm really frustrated with this problem.
EDIT: This problem is on a laptop and I have a MOBILITY RADEON 9000. I hope this information helps.