Try deleting the preference files for them. Also, what OS are you using? You need Leopard.
Ive googled this but couldnt really narrow it down too specifically. I'm trying out ICE3 but every time the apps is clicked to open, it will show in the bar at the bottom and then close almost immediately after. I thought this might be a problem with the program, but its also happening to neonbox - does anyone have some recommendations? Am I missing a portion of the install?