Fullscreen 4:3 video on 16:9 external display off center...

Hello.
I have a Powerbook 12" connected to an HDTV via mini-DVI-to-VGA. When I view 4:3 video on the 16:9 external display (HDTV), the 4:3 video is flush right with a big black bar to the left (rather than the video being centered with smaller black bars on left and right).
After quitting and restarting Quicktime about 7-10 times, it eventually centers, but then the next video I play, same things happens. Quite annoying and hoping there's a fix?
I have the latest Quicktime and OS X (10.5.6).
Thanks,
k.

Switched to a different cable, works fine.

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http://support.apple.com/kb/ht1573
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Check connections
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Fullscreen 4:3 video on 16:9 external display off center...

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