Mini-VGA to VGA cable for HDTV

1.)I am need of some real knowledge. I just purchased an LG 720p LCD HDTV. I want to connect my iBook to the display (which is one of the main reasons i bought the tv). I use the mini-vga to vga cable that came with my iBook, i then connect it to a VGA to VGA cable (the included cable is way to short to reach,so i attach the cable that came with my tv). Boot up...the iBook detects the display under the Display tab in system prefs, but the pc-input on the TV is still blank flashing "no signal" indicating there is no input. I've also tried LG's suggestion (which is the same every time i call) to lower the resolution and reboot to no avail. (they are some real smarties over there..Lifes Good must mean for their customer service rep's!
2.)I know there is a mini-vga to composite/s-video cable available, but i heard the resolution suffers greatly. I'm make films and would want the best (VGA) resolution possible from my iBook. Any help is greatly appreciated.
3.) I've also heard of programs like screenspanningdoctor and DisplayConfigX will these help with my HDTV problem??
Thanks

No cable can extract an audio signal from your MBP's mini-Displayport. It just isn't there.
If your monitor offers the option of selecting separate inputs for video and audio when HDMI is used for the video, just add a separate audio cable from your Mac's headphone port to the monitor's RCA audio inputs (red and white). If the monitor assumes that audio and video will be delivered together whenever its HDMI port is used, then you'll have to send the video signal via DVI or VGA, neither of which carries audio. Then your monitor should play both signals, because it won't expect both to be coming through the same cable and will find the separate audio signal.
Alternatively, there is also this option:
http://www.kanexlive.com/iadapt20
It combines a USB audio signal with a mini-Displayport video signal and sends them both to the monitor or TV through a single HDMI cable. But it's pricey, and it takes up a USB port that you may not be able to spare.

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Mini-VGA to VGA cable for HDTV

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