Says I am connected cannot see secondary computer on primary screen

Same here. I tried installing the demo. If I had PC1 as the primary, it could never find PC2 (telnet failed). But, when I switched them, PC2 works as primary, and both machines give me the go ahead. But when I move my mouse to the edge of the screen, nothing happens.

I was pretty excited about this software, but if the demo doesn't work, I'm not gonna buy it.

Make sure that you have gone into the config and placed your monitors.  That's gotten me a time or two.
Also, verify that the files versions are exaclty the same.