Horizontal stripe in the middle of my Powerbook 17'' screen

Hello to you all, Powerbook users with vertical stripes on the screen!
A few weeks ago, a horizontal stripe appeared on the screen of my 2 years old Powerbook17".
Almost useless to mention that the serial number begins mit W85... With a slight pressure of my thumb on the left side of the screen, the stripe disappeared but after a couple of days it appeared again and now persists. Until now I never had problems with LCD on Mac ( not even with my first LCD screen connected to a Powermac G3 ) and I'm ( still ) a convinced Apple fan, lucky ( well, almost ) owner of three Macs. I wonder why a serious company like Apple take so few care of its customers, when the problem is evidently caused by fake manufacturing.
Has anybody already tried to call the customer service in the USA?
Why don't local stores offer assistance for their customers?
I'm really disappointed. Best regards Acanto
Powerbook G4 Mac OS X (10.4.10)

Just a 'misery loves company' reply. I bought two 17" PB back in Mar '06 after our house was robbed and our laptops stolen. One for me. One for my son. Mine just had the inverter replaced because the screen went dark. OK. I've had Macs since the Mac 512k + and never had one problem. Annoying, but not a bad track record.
Now, this week, my son's PB is starting the line in the display. Does this scream "There's an issue here!"? I shelled out $322.60 for mine, but am loathe to do the same for the second.
BTW, the service at the Apple Store was superb and the turn-a-round time for the repair outstanding. I think Apple should pay for my second one, though.

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