Well I returned the 220 today and got an S590 and I'm getting some way different results, at least so far.
On the dvdr that I was getting menus that seemed to judder a bit on the 220, they seem to be perfectly still on the S590. Now to be fair, it could be the media I use. I bounce between Sony's dvdr's and Phillip's dvdr's, which I get at Big Lots for dirt cheap. But the weirdest thing isn't the dvdr thing, the weirdest thing is the Vudu thing. On the 220, as I mentioned earlier, I was not able to run a speed test on the 220 using my isp's dns numbers, it just kept coming up with a network error. So Vudu suggested I use Google's dns numbers to get to work, and Google's dns did work but on the speed test, the green bar went up about half way into the HD section of the meter. On the S590, while running the speed test, the green bar is going into the HDX part of the meter, and I'm getting all three bars of signal strength on vudu's signal strength graph. But the weirdest thing about all of this is this, I'm usign my isp's dns numbers on the S590, the same dns numbers that wouldn't allow me to connect to Vudu's speed test on the 220.
Of course I'll keep my eye on things and I'll run another speed test later tonight to see what happens. But so far it looks like the 220 either has weaker wifi, or the 220 just wasn't very compatible with my old router.
Weird.. weird.. weird...