Monitor going bad?

[aesthetic]

I've had a Viewsonic e90fb for like.. 3-4 years. And it's been a great monitor. But just recently, about 80% of the screen turns to a green. I can still see everything.. it just has a green tint to it. But its like random, sometimes it displays perfectly fine, then out of nowhere it will go back to green. Any ideas of what the problem could be? I'm guessing my monitor is bad.. but if there is a fix for it, I would love to be able to do that. Just FYI, I have tried different locations in my room, and I have tried a different PC. Same results. Thanks in advance for the help!

 

[Sciberpunkt]

Sounds like it could also be a bent pin on the VGA D-SUB connector or a damaged input cable.