I've had the NSZ-GT1 for a couple months and generally I like it (although sound cuts out now and again for no apparent reason). Anyway the other day I put in a DVD and no picture. The sound works just fine. I put the DVD in a different device and it plays just fine, so I don't think it's the disc. I get picture at the menu or on other discs so it's not the HDMI cable. Any thoughts? Any help would be appreciated!