Product in storefront, cant save

Hello

I put about 50 product in VM, but now i cant save, save/close, or cancel edit product, buttons stop working.
Every things works fine i can edit all other things.

please help

HI,
it might be few reasons, but please remember that Gavick didn't developed VM3 software.
Check on other browser also.
Check answer on VM forum, probably you wasn't first.
VM3 - is not perfect e-commerce tool, for some reasons like this.