For some reason, when I try to use this patcher, it seems to just rename uxtheme.dll to uxtheme.bak and then reboot - leaving the system unusable because the library was renamed. I've searched my system for the patched library, if it was patched it's not on my system anymore. The system is running Windows XP with the Service Pack 1 downloaded as a network install (the 130+MB version, Setup application was xpsp1_en_x86.exe) from MS's website. Before updating to SP1 all theme-related additions (StyleXP/Builder, TGT's uxThemePatcher) were removed and the original DLL was restored so I think I can rule those out. Also DLLcache was emptied before and after SP1 installation. Anyone else have this problem and have a solution?