Norton internet security smart firewall program rules not responding

Hey there i have a trial version of Norton anti virus and I'm trying to allow an exception through firewall and the whole thing goes unresponsive. usually it goes like this; I go to Settings > network > smart firewall and when i hit configure on "Program rules" nothing pops up and it freezes and then it goes unresponsive. i can't kill the process in task manager and this seems to happen everytime i boot my computer. 

Any help would be greatly appreciated :D