Vista - age of empires 2

I bought a new computer with a 20" e207wfp monitor last year(vista). I can
play the game but the color is mest up the water is like brownish-green?
kinda blends in with the land the other colors are bad to. tried to adjust
the monitor but no luck.my other older games play ok so dose aoe3 please help
(works fine on old computer with xp)

I, too, have the same problem with red blothes on the screen. Plus the color teal shows up as yellow in the small scale map on the bottom right corner. Gets confusing when playing a game not knowing if its the real yellow or the teal showing up as yellow. Any help out there for this issue? AOE 2 works flawlessly on my XP desktop but sucks on my brand new laptop with vista ultimate.

Thanks much in advance.