Alright I can relate to this, this same thing happened with my friends phone with revolutionary. I did mine with no problem and his i had problems with. The revolutionary window wouldn't find his phone at all i just left it plugged in he was playing with the things that could block it (such as checking the box to let non market apps download to your phone) he turned Bluetooth on at one point, let it sit, took it off and turned it back on and somehow it got recognized.
I don't know if it was the Bluetooth or that it had been sitting at that screen for a while, but just connect the phone and look over things that could be blocking the phone from being recognized. You can switch something on in the meantime or Revolutionary will just run the way its supposed to but with a little extra time.
Sorry if it doesn't help but it did for my friend so I thought i would give it a shot.