Why is my computer screen blue-ish? (seems to be back to normal now)

[Phoenix Dark]

Edit: for awhile my computer screen was a dark blue-ish color, high contrast or something. But as I was making this topic the screen went back to it's original color.

Is this the foreshadow of some problem, or just a minor mess up?

[Powerslave]

[Smooth Groove]

Crt?  It could be a sign of your monitor dying. 

[MCD]

was it shaking? could be electricity noise related or perhaps it is dying.

[Shuri]

loose cable.

[Phoenix Dark]

The problem came back. I hooked it up to a different monitor and the screen still has a greenish hue. I know the cable isn't loose. Anymore ideas?

[Phoenix Dark]

*sigh*

If it's not one fucking problem it's something else. It's still under warranty but this is like the third problem I've had in a year, if not more.

[Ichirou]

Is this the one your brother uses to search for gay porn?

[Phoenix Dark]

Is this the one your brother uses to search for gay porn?

No this is MY computer

And lo and behold the problem disappeared: the screen is back to normal, but for how long? Granted the green tint doesn't make it unbearable but it's still annoying