My AE700 - just put in a new globe. About 1/4 of "black" background is now BLUE (lower right hand 1/4 of screen, if it matters). Is similar but weaker with the rather old globe - so it's not the globe.

Movies too have "blue" in this area (particularly instead of black or dark colours), but lighter colours (that is, whatever is in the movie) seem to show up more or less OK.

Any suggestions?