I wish I could help you, but I'm having issues too! I enter all my pool's info and my info as well. And when I click start, it just says "Starting..." and just stays there. I know it's supposed to load for about 3 mins, but I even left it open for over an hour and it still says "Starting...".
I'm using 1 Radeon HD 5850 and running Windows 7.
Also, I noticed, when I close out the program, the little icon in the notification area stays open, and it won't go away, unless I right click on it and click close. So yeah, any help would be greatly needed.
Thanks