For some reason Handbrake stopped working for me today. The only changes I have made to my computer were the installation of an external hard drive, namely the WP passport 160 gb hard drive and I set the preferences in Itunes to Burn audio cd. otherwise handbrake was working excellently yesterday. Now whenever I click the application it appears in dock for about 3 seconds then disappears. I have deleted and reinstalled it about 5 times already and it does the same thing each time. Help me out please.