I just picked up a hd33 with a set of DLP link glasses. I wanted to do the RF glasses from day one but didn't have the money for a pair so i opted for the dlp links for now. My issue is I can't get either of these glasses to work for longer then a few seconds at a time. It switches in and out over and over again. I'm guessing that unless i'm missing something in the setup that either both glasses or the projector is failing to perform.