Samsung Fascinate :: Screen White Lines From Top To Bottom?

Randomly, when actively doing stuff on the phone, I go to white lines running from the top of the phone to the bottom when the screen was in portrait position. There were two of them on the right side, each line being a couple pixels in width, separated by a few pixels of normal screen. It lasted for a few seconds, and then the screen reset itself. It's only happened once or twice, but it should happen at all with such an expensive phone and nice screen.