Okay, I received the unit back from the person (Jimmy) who replaced the screen and it is now PERFECT! No more flickering screen! No more light white lines going up and down. He said it was "a defective LCD Driver PC board," and he repaired it. So, now the screen is brand new and pristine, and the unit is working perfectly.. I would now ultimately recommend the screen replacement to anyone looking to replace their screen. I wish I had paid closer to $200 instead of the $250 ($280 after all of the shipping costs) but this guy would do it for $200 if you asked - I went through eBay where the auction for the repair was $250 as I wanted the protection of eBay/paypal, but now I see him offering the same service on eBay for $200.