I have a 2005 15" Powerbook that has started to have issues with its optical drive. When I try to watch a film, the entire screen is covered with flickering green dashes or lines...almost as if I was looking at "The Matrix", but it was made of dashes. However, this issue only arises when I'm trying to play a DVD using Apple's DVD Player software. If I play the DVD in VLC I have no issues. In addition, if I use the fastforward/reverse commands in DVD Player the green issues disappears. The drive is loud and does make "interesting" noises fairly regularly, so I thought it was the drive itself failing. However, flawless playback using the above methods convinced me it was the DVD Player application itself. Because I've looking to sell the Powerbook I wiped the HDD clean and reinstalled 10.5 Leopard to see if that would solve it and it did not. Lastly, this happens on every (video) DVD I've inserted, so its not a random occurrence. Any ideas of what the problem may be? I'm stumped, and would appreciate any help!