Imac magenta screen & vertical lines / low rez screen

iMac 21.5, just 3 months old. running 10.6.3 we now see patchy magenta tinted screen and a low resolution version of the desktop. computer seems to function as normal, screenshots of course dont show the issue. screen seems to be 'half rez' vertically showing the 'scan lines' easily
any thoughts
j

Hi everyone!
My Imac (Intel CoreDuo, early 2006, 24") present same problems - vertical color lines, kernel panic and finally DEATH-. Just after reading this
http://discussions.info.apple.com/thread.jspa?threadID=1580232&start=435&tstart= 0
I call Apple and a very nice guy tell me, Apple extend warranty for vertical lines problem, but only in 17" machines! I can´t believe it!
I´m pretty desperate. Someone with 24" Imac could solve the problem calling Apple?
I live in Spain, the serial number of my Imac is W8642**GN
Thank you!

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Imac magenta screen & vertical lines / low rez screen

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