I have the same problem but on the bottom part of the screen, same TV same Model Number, I heard that this TV uses a set of three bulbs, green, blue & red, and the cost is astronomical, they range from $200 to $400, almost $900 to change all three bulbs. The TV is not worth That much !!, Way to Go Philips !!!
Where did you buy this TV ? Walmart ? I did !!
Tony 863 605 3936
Tony, January 2008