GCstar forums - keyboard lock up

I am using gcstar 1.6.2 on Fedora 17 with Gnome 3. While trying to add movies to my collection my keyboard locks up at random. Mouse input is okay so I can save what I am doing and restart gcstar. This happens most often (although not exclusivly) when selecting "cancel" for an IMBD search that did not return the result I wanted. Can anyone suggest what I might do to correct this behaviour or gather more information on what is happening?

Thanks