Weird question about shut down of Parallels and getting a blueish hue!

Okay, this question might sound non-conventional becuase I haven't seen it on the forums. I am running 10.4.9 on a Macbook Pro 2.16ghz on 2 screens (1 laptop, and 1 Dell 24").

1.) Started parallels on the bottom screen (laptop screen) using FULL SCREEN MODE
2.) Did my work, yada yada on windows (like any other day)
3.) Shut down windows xp (start, shutdown)
4.) Once it brought me to the main parallels screen (the screen after the shut down screen), everything on my desktop had a blueish/gray tint (noticeably different than my other screen).

Does anyone have this problem? Thankfully it only happened one time, but I hope it doesn't happen consistently....