Funny you should ask about the display of the IA-1. Today I plugged mine in, it started to boot up normally, and when I tilted the screen I heard a pop, the screen went blank and I detected a burning metal smell. Hmmmm. Thought it was the processor at first but it seems as though everything works except the screen.
I am (oops I guess I should say was) running it with a microdrive and it worked well. I wonder if I could send the IA-1 back to them to have them fix/replace it? What is the warranty on it? I got mine way back in March.
The panel has buttons for contrast and brightness. You can vary the contrast quite a bit, but the brightness has only 5 or 6 settings I think - thus it only makes a small difference.
The drivers are here:
Once you install that, and if you run windows update, it should tell you that a newer version is available. I have a newer version (can't tell since the screen burned out) which has the numbers 5495 (going by the name of the file) in it if that helps.