Dell W4201C, White screen on Power up (used to be Black).

TV worked fine for 2.5 years.
When I turned it on, I get the blue Dell Logo, and a white background, with 'pools' of black. I describe them as Pools, they are like sploges of black, looks like spilled ink.
After a few seconds, the proper black backgound 'kicked in' and everything looked like normal. I watch TV for a few hours.

The next night, I got the same White background with 'spilled ink' effect, however it never corrected intself. The black sploges faded away as the tv images refreshed the screen. But the black never kicks in, and I have a very faded picture. Bright colors are okay, but the black areas are a very light gray. 

I don't beleive this is the black problem I've read about from other posts. This is so bad it's not watchable, and like I said, I was happy with the picture for over 2 years.

Any ideas on what has broke? Of course I'm out of warrenty.
I spent $3000 on this TV and don't want to chuck it, although I see I can now buy a better TV for $1000.

Any advise on fixing it myself, if it's easyish, or who might repair it in BC, Canada.

Thanks
Greg