I'm getting some weird screen corruption in Safari at the moment on my new Macbook. I've tried re-loading Safari, rebooting etc but its still happening when scrolling.
do you have "smooth scrolling" in sysprefs/appearance? if so, turn it off and see if that helps. does it happen 24/7, or after a period of long use? if it only happens after prolonged use, you might have some GPU heat/ventilation issues.
Yeah I actually had this happen the other day. I woke it up from sleep to do some browsing and that happened in Safari & Firefox. I quit both apps and opened them up again and it was still happening.
I then shutdown and restarted and fortunately it was fine. I haven't seen it since.