Not doing anything

at first the media converter worked, but now when i try to use it, it acts like its about to convert, but doesnt. no message pops up or anything. any help?

uninstall and reinstall?

Plug in the fuze first.  Then open SMC.  Is the Fuze there?

How big is the item you want to convert?  Small photo?  Large photo?  small short video?  full length video?

Have you tried something that worked before (you can delete it after)?