I heard there was a limit GPU OpenCL can support depend on OS.
OS can detect as many as I plug in. But on Windows, I'm sure 100% I can only mine with 4 GPU.
But with Linux, someone said 6, someone said 10 (Ubuntu).
Like I said I've never looked into this I will have a bit of a read up later.
Are you still coming out with a release version this week? If you say no, guess I will just have to use 0.2.1b and live with the bugs.
Should be ready by mid / end of the week.
Just updated the wiki to include a tested way of setting up X11 forwarding + how to enable VNC via SSH

enjoy !!