NIS 20.2.0.19 can't access settings on Windows 8

I've had a few problems with NIS on windows 8 such as not being able to do a quick scan etc but I've managed to sort this out. But  clicking on settings from the main window doesn't do anything. Everything else seems to work as it should. I'm the only user with admin rights so that isn't the problem. Worked ok with windows 7. Sugguestions?