Ati radeon graphic glitch........FIX!

I was having severe problems with all opengl games, and a few D3D games when it came to graphic glitches, it was pretty horrible.
Tried all the usual subjects, the omega drivers, loading old cats...
But the truth is, it was running TOO hot for the flimsy stock fan...
Now i'm not sure if i had a new sinc and fan i could go back to what i once had or not...
Anyway, get ATI tools and underclock it a little bit, like 5-10-20 click.
Dont worry, you wont miss a thing..
And all the glitches and artifact magicly went away!
Pretty neat huh?