Ok, this should be an extremely easy step in the computer building process but I can't do it for some reason. I'm trying to install the stock hsf that came with a retail 1.33ghz t-bird. One side of the clip for it is called non-movable in the manual. The other one is supposed to be movable, and it looks like it has a connector for another piece that would move and attach the hsf, but there is no extra piece there and the thing won't connect. What's going on???