I have an iMac (version 10.4.11)....and have the vertical line problem. There are two thin vertical lines on the left side of the screen and a pink line down the middle of the screen. Is this problem correctable?

TV Repair Help for Vertical Horizontal Lines on Your TV Screen...

If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
Search the site by type in the "BRAND NAME" of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts

If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

If you've ruled out that the source you're displaying from is good, I would contact vizio for a warranty repair

it is very likly you have problem with the buffer boards, sometime help to unplug conector and reconect, also check the smd fuse located on one of the boards since there are 2 buffer E&F.

Maybe the video card. Try to spray with electronic contact cleaner the connections (pc cable to monitor).

I know this post is old,
But I had the same problem.
I was able to fix it.
Heres a write up I did on the "How To".
I added pictures and diagrams too.http://jasonkoller.blogspot.com/2011/02/lg-du-42px12x-plasma-tv-fix.html

Had this same issue on right side of 52" about 1 inch from side but had 3 vertical lines that disappeared after 40 minutes. Have Samsung LNT5265FX/XXA and about 16 months old. LCD Panel itself had to be replaced to fix it, fortunately had extended service plan

I have a thin red vertical line on the left side of my Philips LCD TV