A random green tint covers my screen, it sometimes disapears and sometimes i can even just give my monitor a smack and it goes away. Is it a hardware problem or a software problem?

Try hooking up another knowng working monitor to the computer and see if the blue tint comes back intermittently.

If it still comes up then you know your video card is the culprit. If the blue tint goes away then you know the original monitor is bad.

sounds like your monitor is starting to go out. if there are any speakers near your monitor, it is likely magnetic interference. try moving your monitor to a different area and see if it still does this. if it does, i would replace the monitor. if it doesn't, just simply reorganize the area around your monitor and it should go away after degaussing the screen.

Connect a different monitor to your computer, if it still displays the same fault the the problem is the video card and you need a replacement.

A pink (or any tinted) screen is usually an indicator of one of two things:
1. The cable going from the video card to the monitor is loose. Try adjusting the cable and see if the picture changes. Put pressure in all directions slowly to see if it clears up. If it does, you should change your monitor cable.
2. One or more of your CRT "guns" or "rays" is malfunctioning, causing the red gun to be too strong, or causing the green or blue to be too weak. This is difficult to fix... time for a new monitor. Sometimes you can get a little more life out if by smacking the monitor on the side.

Just attach an external monitor to it and observe for several minutes while working on it. If the problem disappears, then it's time to check the screen signal cable and/or the screen itself. Only a qualified technician can handle the later except you are one. Good luck

The solution: hidden menu within the main menu itself. Hold the Menu button down while pressing Power to power on, and release power button only when the screen comes up, still holding the menu button. The menu will appear and there will now be a hidden selection, "Auto Color", printed in a red-on-black font at the bottom of the menu. Use the +/- buttons to access it, and press Menu. My green/yellow tint went away! Now my picture works great, and the setting lasts through Auto-Adjusts and Resets!

try looking at this link http://answers.yahoo.com/question/index?qid=20080719201319AAgpfTo
basically their saying it's a dying monitor, or magnet... once happened to me with my tv it became green b/c of magnet

mine has a green screen too, but sometimes it goes away

Smacking the monitor works for me. Really.

Loose connections in CTR board ( picture tube), resolder it.