Hi,
What you could do, is delete the folder, and then use something like Crap Cleaner, to delete all of the registry settings left behind by UT2004, reboot and then re-install mate, should work fine. Failing that the only way to guarantee a clean install is to start with a clean PC ie a rebuild of windows.
By the way if any1 is interested im thinking of writing a how to rebuild my PC properly guide, as Im always getting asked how to do this at work, and there are things you can do, to make it easier in the future to rebuild your machine, partitioning drives etc , i do mine about every 2 months or so.
