I received my SX21 yesterday and so far I'm impressed with its capabilities. However, I'm seeing some kind of weird artifact that I've typically only associated with old CRT monitors/TVs. Take a look at the pics to see what I mean.
I have it hooked up to my PC (Radeon 7500, 1400x1050, 1:1 via DVI). Moving around the program windows causes the artifact to move, so it's not burned in. Darker window background colors (such as a black window on top of the blue desktop) cause a more pronounced banding effect.
So far it hasn't been noticeable during normal program material, but seeing it on my desktop is enough to bother me. Any ideas what could be causing this?

I have it hooked up to my PC (Radeon 7500, 1400x1050, 1:1 via DVI). Moving around the program windows causes the artifact to move, so it's not burned in. Darker window background colors (such as a black window on top of the blue desktop) cause a more pronounced banding effect.
So far it hasn't been noticeable during normal program material, but seeing it on my desktop is enough to bother me. Any ideas what could be causing this?
