In most sites, when i scroll down, Safari seems to occasionally tear the pages. Scrolling until they are out of sight then returning seems to help, but its not a solution to the problem. I have tried repairing permissions, logging out and restarting. I think i may have done fsck as well, but im not sure. i'll do it now. It happens on my MacBook and my parents MacBook Pro. Below is a pic of what happens. Any ideas?