Originally Posted by !!!Firmware!!!
Sorry it took so long to post back after installing my main board I had to leave for work. When I put it in and turned tv on the logo on the screen had the VIA logo, right there I knew that was older firmware. Did the setup did not connect to the Internet. After that was all said and done my problem is gone!!! So 99% sure it was Caused by the firmware because now I have older firmware with no problems. I'm so happy!!!!!!!
You said you now have the older firmware, what is firmware revision do you now have?
A tech replaced my mainboard also and my set now works fine. My firmware is older than the current and problematic C7.0.1.S, it's now C6.2.0_RC2.
I have not and will not enable an internet connection for fear of re-intoducing the same fimware problem I had previously. My previous symptoms were a variety of the previously mentioned ones: reboots, choppy audio, squigglies around the edges of images, frozen video followed by a reboot, video drop-outs.
I've been a Vizio fan, this xvt55sv has a great picture. However, I think my next set will be of a different brand. Im just uncomfortable with the inability to refuse a firmware update. My problems began immediately following the last update on Jan 7, 2012.