I purchased a Dell 3100MP from an associate. The display is a bit whacked out.  Everything that should display black is showing up an almost monochrome green.  I have made any adjustments in the unit I could fine.  At first I thought it was lacking red, but after looking at a webpage I noticed the X does display red as well as the Windows logo.  The unit has a new bulb in it so I know that is not the issue.  Also, maybe it is just the new bulb, but the display is VERY bright.  I was able to project on the ceiling in normal office lighting directly next to the light and see everything fine. (Obviously not compaining about this).  Please help.