Issues with my new Monitor

[ussfletcher]

When I minimize a game, the contrast and brightness are still that of the game's, upon attempting to maximize the game again the monitor seems to shut off, no color or images or backlight, but I can still hear the sounds (the green LED still on during all of this) , When I minimize it again, the desktop shows. My video card drivers are up to date, so are the monitor's. Any ideas?