I had the Win7+nvidia fix already in my Gothic II Gold directory. Then I accidentally installed the patch with the Win7+nvidia stuff checked, which messed up my game. Oh and when I finished installing the patch, it couldn't make an uninstall log or sth. So I had to "force uninstall" it (also removing the title from the add/remove programs place with ccleaner). And then I uninstalled the game and deleted the folder.
Did a fresh install and tried to apply the patch, tells me I already have it in my system. So, how can I remove all traces of the patch so I could reinstall it?