Display Oddities

I've been messing with LCD output a bit. At first when I tried to clear the screen, I just ended up with a set of vertical lines, as if it skipped every other pixel in drawing:



So I decided to reinitialize the display. I wrote some bad init code from the start, so i had to mess with it a while, but then I redid it and ended up with blue! even though Its not a color display! I will try to find out if it is a bad thing for the display to have color on it - and whether more colors are possible.