I can't figure this. The A2 and it's predacessor the A1 were great upscaling players... until I got the JVC RS1 1080p projector. Watching Star Trek Deep Space Nine, I've been seeing combing artifacts(the meteor in the opening credits is a prime example.
At first i thought maybe the JVC doesn't like the 1080i signal, so I tried it in the PS3 at 1080p, and it looks much better on the PS3. Then to test that, I tried it in the Oppo, no combing artifacts there. HD-DVDs look just fine, I can't think whey I would suddenly start seeing this with a new display device.
I plan to get the XA3, but until then, I guess the PS3 is my upscaling player