i encoutered a problem with my 970 and my scientific atlanta 8300hd cable box. i have the 970 doing the dvi swithing and the cable box hooked up to the 970 with optical and a hdmi to dvi outlaw cable. it works fine sometimes, but sometimes i get audio, but no picture. And sometimes i get neither picture nor audio. if i reboot the cable box it seems to fix the problem, but i'm not sure what's the issue. is it a buggy 970, is it a buggy scientific atlanta 8300hd cable box, or is the hdmi to dvi cable causing the box to have a problem. at the times when i have this problem, it also seemed to effect the ps3 i have hooked up with optical and hdmi to dvi outlaw cable. you could hear the audio from the ps3 but not picture, and then one time it happened, i had no picture or audio from the ps3 and when i swithed inputs to the cable box to watch TV the same thing: no audio or picture. is it the 970? problem with the dvi switching? i installed the latest firmware. what do you guys think the problem is?