Pixilated dock and icons

My computer has been running fine for years and then today i opened a game (wc3) and the game went all "checkerbaord" and pixilated. when i quit my dock and icons were all pixilated like they had lines of white "IIIIII" passing through them. but when i open sufari or Microsoft Word it they look fine. i've been looking all over the interent and i can't find any answers. Please help!!!
P.S. i've tried restarting, detecting the settings of my monitor and reconecting my display
whats going on!!!

Frank...
So everything is operational and all set? You're able to access the dock? You're able to launch applications? How about Quicktime... seeing that's the last thing you patched, can you launch it without any issues?
You may want to check permissions in Disk Utility, as well as check start-up items. Things don't typically "appear" in there but it can't hurt.
I'd try a restart after that, and a reboot (normal). If the problem replicates itself then it's probably not a Quicktime issue. Especially if it's not queued to run on start-up.
Archive/Install is always the last option, unfortunately, sometimes it's the quickest and easiest way to just "fix" an issue.

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