Sprint Diamond Backlight?

[Iamdabobo]

The backlight seems to be dying on my Sprint Touch Diamond. Sometimes it works, sometimes it doesn't. This is the third time now that it's crapped out and come back. Each time it's crapped out for a different amount of time. I can just barely see that there's something on the screen, but it's not legible. The phone is less than a year old, but I got it off ebay for real cheap and its price didn't justify TEP from sprint. Does anybody have any suggestions or fixes? Buying a new phone isn't exactly out of the question considering I know it'd be expensive to get this one fixed. I considered getting a crap phone off of ebay to use until April, when my 2 year contract is up, but sprint's prices suck so badly I don't know if that'd even be worth it. Also, I have SERO $30/month.