Television and Home Theater

I just recently bought a Philips 42" LCD (42PF7421D).  When there is a dark picture on the screen, I've noticed a faded white light on the bottom left corner and up the side.  Any suggestions on what might be causing this?  Only had tv for a week for a few days.

 Thanks,

 Blevins

I have an old RCA (M#: F20575EM) TV that when lots of white is on a TV show, the TV will wash out and you can't see it.  If I bring the contract control down (< 25%) it's better, but the picture is too dark.  I've also adjusted the brightness but it just brings back my white washout problem.

 Also setting the TV this way, makes it difficult to read text on the screen (guide info) as the letters aren't crisp and they are dark.

 I have lots of tuning controls on the back of the TV:

Hello...Please help. In the menu convergence mode, my horizontal blue convergence line is way off and will not move. The verticle line moves up and down ok and the red works fine. Problem started when colour went bad all of a sudden; then screen went black and red power light flashes. Disconnected power for over-night.