Question about LG 32LG30 32 in. LCD HDTV

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Can't get TV to display laptop screen

I have a Dell Latitude D600 connected to a 30LG32 HDTV via a VGA 15 pin cable. The tv has a plug and play feature that allowed me to initially watch a movie on the tv from the website without touching anything - what was on my laptop display showed up on the tv right away (and my laptop screen simultaneously) once I selected the RGB-PC option on the tv input menu. However, now I cannot get it to work this way again despite changing resolutions on both TV and laptop display. The lowest res the TV recognizes according to its menu is 1024x768, but LG (manual and cust svc) says it supports lower res through 600x800. The tv will display the boot up screen, which I understand to be 600x800, and a cropped pic of the desktop setting (w/o icons), but nothing else. On the mid-range res tv options (1260x768 and 1300x768) I get "invalid format" floating across screen, otherwise it's the "no signal" floater.

Thinking it might be a driver or video card issue, I took my laptop to PC outlet and had a tech look at it and hook it up to a larger LCD panel (they had no large LCD HDTVs) and it worked fine, allowing both displays to show the same thing simultaneously, even after the tech used the F8 key.

The LG tech was here earlier with a larger Panasonic laptop (I saw it had a default res of 1360xsomething-other-than-768), which of course was recognized by the TV and his laptop screen showed up fine, on both screens. When we scrolled through the tv res' via the RGB-PC menu, the correct res was flagged. Then we switched to cable to my laptop and the res on the TV stayed the same, even though we re-booted my laptop a couple of times. The LG tech used the F8 key and at first we were able to see both screens, although I understood that key was actually used to switch the destination of the video signals, so did n't see the need since images were showing up on both screens (TV and laptop). I left the room because I had to let the furniture delivery guys into the apt complex using a gate code, and when I returned, he said that he "turned it off and on three times and it seemed to be working okay, but just remember to use the F8 key". I said okay and signed off on the work order since the furniture guys needed me to sign off on their paperwork, too.

Once everyone left and I hooked the VGA cable back onto my laptop, I could only get a picture on the TV screen if I used the F8 key to switch over the video signal from the laptop display. Not the way I really wanted it to work, but acceptable. I placed an online Office Depot order this way, then I switched the TV input to watch a show. Now again I cannot get anything to show up from my laptop on the TV, even using the F8 key. It switches the signal away from my laptop, but it never shows up on the TV.

I just bought this TV in June and have been troubleshooting this issue for going on 3 weeks. It was a display model at a furniture store and they have no tech support to speak of and of course will not let me return it. However, it is under manufacturer's warranty. Previously, I exchanged cables, tried an S-video cord, and synchronized every res possible between laptop and TV, besides having the video card checked on my laptop. If you know of ANYTHING else I can try, please suggest it. If not, let me know if you think it is the TV or my laptop based on what I have written here. In the meantime, I called LG to send their tech back because I feel I should be able to use the plug and play feature as it is advertised without having to adjust settings on anything -although at this point I really wouldn't care, as long as I could just get it to work in this way.

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