Damn it will NOT come off. I've had trouble with this kinda thing before -- but it had to do more with my noobness. Now that I'm a pro

this is definitely negligent on the part of AC. They need to warn -- or better yet recall these things (if we actually manage to take it off)
Well, I instead decided to make a hole for a 120mm fan right above my x1900. Great idea. Mobo temp went down 10c and my vid card load temp went from 80C to 65C! Nice!