Have you checked the display contrast? It might be too light or too dark. I keep mine about 1/4 of the way from the far left, just to the right of the t under Light. Do you know how to check the display contrast?
Yup, I have tried changing the contrast. It didn't help.
I'll post some shots of the screen this evening. And I'm going to try to see an in-store unit this weekend to compare. If it turns out the problem is me, I guess I'll return the Sol and await the Liquivision Lynx. Or get new eyes.