I am a Apple virgin and I have a Ipod touch 8GB. I have had this problem since 10 min after activating it. I am running 2.0 on it. It is not jailbroken. The problem is that sometimes when I get to the unlock screen, there are horizontal white lines and when I unlock it, they are still there. This only happens sometimes.
http://www.youtube.com/watch?v=bXpFZ4u11N0
http://www.youtube.com/watch?v=bXpFZ4u11N0