I have always got good advice on here, so here goes again: I have two apps (Submerge and RoadMovie) purchased from the same developer, Bitfield. These apps worked perfectly on Leopard. Now, on SnowLeopard they refuse to open when I click on them. I have contacted the developer who assures me they work fine. Not true. I have run Disk Utility permission check. I have uninstalled and reinstalled. But they refuse to open. These are the ONLY two apps that behave like this. I find it strange that they are both from the same developer which leads me to suspect that there is something I am missing. If anyone has any idea what is going on here, I would really like any help that is out there. thanks.