I never really thought about using Curvy 3D after installing it on GotD, but now I see there's something wrong. I've read the forums, and I see I have to reinstall? Now, I think it is a little to late to reinstall
What should I do?!
If you have already run Curvy (and the GAotD licence exe) and have the no-interface problem, you can still run SetCurvyPath.exe in the install directory to fix it.