Odd, it seems to be working for me. If all else fails, use the link to download a fresh copy of the ironhand graphics, unzip it, and stick it in the graphics folder. If that doesn't work, I can't really help much beyond platitudes (turn it off, then on again!).
I did find an issue with CLA though (mouse missing) which will be fixed in the next release. Before then, just copy mouse.png from another graphics pack.