YIKES. Dang Bob, I hate that. That situation never crossed my mind. I don't know if there is anything we can do. If anyone has a suggestion please speak up.
I think it probably has to do with low contrast areas...black text on the various green backgrounds in particular. I think we can do a couple of things there if Bob can help us out pinpointing the areas giving him trouble. I'm guessing it's a contrast and a red-green thing?? I've dealt with it before.
1. These input text boxes can be easily changed to a light background to highlight contrast.
2. I can whip up an alternate stylesheet specifically addressing those kinds of issues so that anyone experiencing that kind of difficulty can select the higher contrast stylesheet by clicking a button or link.
I'm off work until after Thanksgiving so now's a good time to go ahead and address this.