Late 2010 MacBook Pro 15", upgraded to Lion on Sat 23rd no external display does not work

Hi all,
Wanted to ask this question here see if anyone might have a solution to my problem.  I have a Late 2010 Macbook Pro 15" which I upgraded to Lion yesteray.  Ever since that upgrade when I try to connect to my TV to watch a video no joy the image looks like the colours are out.
I have tried it on different resolutions and always the same.  Then for some reason the MacBook Pro split the screen in two.  So now I see the right of the screen on the left of the TV and the left on the righ with a big black line done the middle.
Priror to the Lion upgrade everything was fine.  Only since Lion has this been a problem.
I am using a Minidisply to HDMI cable to go direct into my Phillips 42" Plasma, and I have not got a clue why this is doing this.  The strange thing is it works ok on my Samsung BX2450 down the same cable no problems at all just the TV that has issues.
Any suggestions?
Cheers
ZeroG

Hi Cyberviper42,
I understand that you are seeing some issues with your connection to the internet on your computer. I have an article for you that will help you troubleshoot this issue:
Wi-Fi: How to troubleshoot Wi-Fi connectivity - Apple Support
https://support.apple.com/en-us/HT202222
Thanks for coming to the Apple Support Communities!
Regards,
Braden

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