[mythtv-users] Need advice with 'Pixelization"

[Larry K]

I'm somewhat perplexed, so I figured I'd post here and see if anyone has 
solved this issue already. A search of the database does not produce 
anything that looks like what I am seeing.

In brief, I have the following system:

Athlon 2500
256MB RAM
160GB DMA HD
PVR-250

I have only had the system working for about a week, but already I notice 
that when I watch live TV, or play back a recording, I notice areas of what 
I call "pixelization" where there is sudden or significant movement in the 
image. The image does not stutter or act jerky, to the extent that the 
entire image does not seem affected by this issue. The problem appears in 
isolated areas, and then as the motion in that ares of the image subsides, 
the pixelization subsides as well. If I had to guess, it's almost as if the 
PVR could not encode the movement sufficiently to make it appear smooth 
during playback. 

Does anyone have any thoughts as to what might cause this?

Thanks,
Larry
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