If you render if Full Frames, Uncompressed in the other programs - you should have no problems. Also, there is an mjpeg codec that I sometimes choose, as Studio recognizes it. There are some codec's that Studio does not recognize. It's always better to choose Full Frames anyway.
I agree that you should uninstall Studio 10. If you use Smartsound, and you don't have it working in 11, you would need files on the Studio 10 disks to get it going but I presume, you have probably already got it working.
