I've been noticing some strange behavior lately when using safari.
When pages have interactive components, I am assuming having to do with html5 features but not sure, some parts of the page will freeze in fragments. There is a lot of flickering between various arrangments of these fragments, and the result is really disorienting.
As an example, I was chatting on facebook and when a new chat would appear, sometimes half of the new window would scroll up, the rest would stay there. It could be horizontal splits between fragmetns, it could be vertical.
Only in safari. Not in chrome. Not in another other aspects of the computer.