I had an odd problem with my Roku last week. After about 2 months of regular trouble-free use of the Roku in the theater, we turned it on one night to discover that it was only showing the left half of the screen. Troubleshooting via swapping cables and receiver inputs confirmed that it was the Roku itself that was at fault. My wife quipped that at least we could still watch half a movie. Changing the output settings form 1080p to widescreen (16:9) worked around the problem and we were able to watch the movie of our choice that evening.