I too have tried to figure out a way to get screenshots. I have toyed with finding some sort of video recorder to put in between the Roku box and the output screen (TV, monitor, etc). I have not had any success yet.
The other thing I am trying is setting my still camera on a tripod, turning all the lights off and taking pictures with the timer on my camera. So far it seems to be working.
🙂
Brian DeWitt
e. brian@thehighwaygirl
w. http://thehighwaygirl.com
t. http://twitter.com/briandewitt