Tonight I notiched a weird glitch in some of my HD channels - they are going very slowly but the audio is working fine. If I enter the guide and cycle through the themes once or twice they work fine and the video is working fine the little window in the right hand side. Is this a DISH glitch or a sign of trouble with my 722 receiver? It seems to be happening on many HD channels - on 110 and 129 and even on some of my local HD channels out of KCMO. Anyone else seen something similiar?