I've had these strange bars and what appears like static on my screen every once in a while. I have a Santa Rosa macbook, software up to date - the only problem it's had was some power issue. (The green/orange light rarely shows up on the charger; one day, it wouldn't turn on at all. Took it in to the store, they fixed it - something related to the power input. Works fine now, still doesn't always show the green/orange light on the charger.) Anyway, here's some pictures of what it looks like. Has anyone seen this before? I'm using screencapping, so it's not something external. This only happens once in a while, it will plague almost any open programs. PDF's, documents, and webpages seem particularly prone to getting glitched. Any suggestions would be appreciated; I just want to find out what might be wrong. (I'm thinking that, even if it is something that Apple should fix, I might want to wait until June... Just in case there's another Macbook revision. ) That, believe it or not, is System Preferences during one of the glitches. I think it looks awesome, but I'd prefer it to be normal... Software up to date, but it kind of can spread across the screen.