Resources give me the choice to mirror this leaked ForceWare driver of NVIDIA, I would like to give you the change to give it a look. As we all read on other sites this detonator has a bug in Unreal Tournament 2004 and should be fixed by NVIDIA soon. The official release date of this ForceWare driver should be the first of march. Click on Read More... for a download link.

Download: NVIDIA ForceWare 56.56 WinXP/2K drivers