Studio XPS display turned red

I've had other problems with this laptop including a failed display when it was about a month old, so I'm not terribly impressed with Dell.  Now my display (LED) has turned red.  I haven't lost all other colors, but the picture has an overall cast of red.  It is difficult to read small text because the human eye is less sensitive to red, so this is a real pain.  Any ideas?  I'm out of warranty; otherwise, I'd call Support.  Does this ring any bells?  Thanks!