MBP connected to Sony LCD 46X350A - No Signal Detected

Need help.
I've tried connecting my MBP to my Sony LCD via the VGA output (I believe that's what it is), via the cable supplied when I bought my notebook, but the message on the LCD says no signal detected.
I've went into the System Preferences, Displays and the MBP definitely recognizes that it is connected to the LCD, but I cannot get any picture (No Signal Detected Message on LCD) either by mirroring or using the LCD as an external monitor.
Any thoughts or suggestions from anyone?
Many thanks in advance.

Im having a very similar issue. I was happily using my MBP with an external Acer Display connected, until that display simply stopped working. It now only says 'No Signal' before shutting off. Zapping the PRAM and the SMC didn't get me anywhere, so I'll be taking it to the Mac Store tonight. I'll post what they'll tell me!

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MBP connected to Sony LCD 46X350A - No Signal Detected

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