Have a flat screen 52" Sansui TV, lost the remote. Now I bought a Dixon 1899ES universal remote. Got it set up ie: volume is working... But when I try to watch movies on my hard drive via USB, I have a problem. See everything is there, but when I scroll to the movie, a mini screen pops up showing the movie, and when I press "ok" it only makes a green correction mark on the box... How do I get that mini movie to full screen?