MM 2.0 gamma issue

I’m using MM 2.0 gamma on windows 7 on my patch-clamp rig. Since this morning, MM doesnt run. When I launch it, I only get the general ImageJ toolbar but no MM.2.0. I tried already to run it from Plugins --> MM --> MM studio but nothing happens.
Any solution? Uninstall and reinstall it completely?

Thanks a lot for the help