A couple of days ago I was able to connect using latest beta GUI software and I update to latest recommended firmware from GUI (not the manual method). Today I have tried from my Mac and a windows PC but I can't get the GUI to talk to the board. I've tried version 2.40b7 all the way up to 2.44b4 and still the same thing. I even reinstalled the SLI labs driver.

There is definitely power going to the board as I can see the lights on .... but thats it.

What else can I try?