I have a question for you.
Does it do this for ALL Sources?
Meaning Cable, Blu-Ray if you have it etc. or just some components.
If it is all Sources / Components then it could be the Pioneer Settings or Vizio Settings.
I have the Pioneer Elite VSX 53 connected to my Pio Kuro Plasma but I have a Pioneer VSX 1020 connected to my Vizio XVT323SV.
Without ever having a problem.
There is a setting in the VSX 52 for either Plasma or LCD, so make sure that you do not have Plasma set for your LCD HDTV or LCD set for your Plasma.
For my Cable Box I set the Box, my Pioneer receiver and HDTV ALL to 1080i, because Cable does not support 1080P yet.
So why set 1080P when it is clearly not there!
My HTPC with Blu-Ray Player / Recorder is 1080P, so my Pioneer receivers and HDTV is set to 1080P.
Vizio's usually play nice with Pioneer or at least mine does.
For Start-Up sequence, I set the Vizio to come on first and then the Pioneer.
Be careful because Cable boxes can be set to "Zoom" "Normal" or "Stretch" the video and this can cause some conflicts.
Also you do not have to spend a lot for a good HDMI "High Speed" cable.
Go here: http://www.monoprice.com/products/su...02&cp_id=10240
I have this cable: http://www.monoprice.com/products/pr...seq=1&format=2
And this Cable: http://www.monoprice.com/products/pr...seq=1&format=2
I especially like the "NET" Jacket which is like a Braided Nylon cable covering.
Both cables work Great!
The 25 footer connects my HTPC to my VSX 1020 and the 10 foot Net Cable connects my Elite VSX 53 to my Pioneer Kuro Plasma.
Christmas at my brothers had a lot of MonoPrice HDMI Cables being ordered, for new HDMI Laptops, Sony PS3, etc. It was a Techno Christmas!
I was busy!
Let me know.