I have an interesting problem with the Closed Caption only on 12.3. There is something in the data that my Vizio just doesn't like. Every so often, and it takes awhile for it to happen, the black background turns white, and the text just blends in and disappears. A quick channel change up or down and then back cures it untiol it happens again. In a two hour span, it may happen once or twice and that's it. Weird.
You never know where the LIMIT is until you EXCEED it... Dianne B. "Let's try that again... without the oops." (Will Smith and Jeff Goldblum in "Independence Day")