AnyDVD won't display options

Hello. I have installed AnyDVD version 3.6.1.1, and it worked fine till 2 ago. I’m not able to get to the options menu, and it will turn my computer very slow when it is working.
I also have since then a registry warning everytime I boot my computer saying that the registry had to be restored because there was an error.
I already tried re-installing the program twice, and restoring to a previous point (I’m running Windows XP) but nothing seems to work.
Please help,
Thanks,
Dama