Strange red and blue "particles" emanating from object and avatars.

Did a bit of browsing and didn't see a similar issue mentioned on these forums, but I apologize if this is a repost.

Anyway, recently and very suddenly I've been experiencing extremely annoying visual bugs in the form of red or blue polygons floating upward around various objects and avatars within the game. Sometimes it's very heavy, and completely obscures things with its self-replication, and it's absolutely driving me nuts. They appear in groups, rising up from their point of origin and fading as they do so. It's almost as if certain particle effects aren't working, but they're coming from things that I don't imagine to have any sort of particles.

I've included a screenshot of a particularly bad case. What the hell is going on?

http://img512.imageshack.us/img512/9343/bluecrapdf3.jpg

Ctrl-Alt-Shift-U will take care of that for you

(It's Client / Show Updates that's checked that's causing your problem)

You've turned on "Show Updates", somehow. Hit Ctrl+Alt+Shift+U to turn it off.

~JP

You guys are awesome. Right around the time I posted I started wondering if it had less to do with a graphical "glitch" and more to do with something like the feature that colors scripted objects, since specific "types" of objects and animations seemed to generate either a red or blue graphic. Thanks for the instruction on how to make it stop!