I'm building a new system for this software.
Has anyone tried it in Windows 7?
Also can 3 cameras be used using the four camera software?

I am currently using Windows 7 just fine and am using three cameras currently in the Beta.
For testing purposes right now the software supports up to 4 cameras and there is no 1,2,or 3 camera limited version. Also, if you buy the Beta you will automatically get upgraded to the 4 camera version when version 1.0 is released for free. As far as I know there shouldn't be any complications with doing a 2 or 3 camera capture with the 4 camera version when that is released.

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