Hi Adrian, Most monitors have a warranty against a certain number of dead pixels within a certain timeframe but a thin red line does not sound like dead pixels. A dead pixel is usually the loss of one of the three colours of the red-green-blue trio (RGB) within a single pixel. The closely related cousin the stuck pixel is where one of these three colours stays on. A dead pixel, unless there is systematic damage of some sort, is an isolated point at a random position on your screen.
There is software around to test screens and show up dead pixels, usually by flashing colours and black up on the screen and asking you to look for irregularities. A quick search turned this up but I have not tried it and do not endorse it in any way: http://www.macupdate.com/app/mac/7669/pixel-tester If the problem is still there when you run the above software, or similar, it is likely hardware related and the Apple Store would likely be interested in it and may repair it for free. Cheers, Carlo On 19/02/2012, at 20:31 , Adrian Skehan wrote: > Good evening all > > I was at my daughters place this afternoon and noticed that a thin red line > had appeared on her iMac screen, it is on the left side about 15mm in and > extends from just below centre to the bottom of the screen. I presume this > is a dead pixel. It is a 21" iMac about 12 or 13 months old so is probably > out of warranty, as usual she forgot to take up the Apple Care warranty. Can > anyone advise if Apple may be, even remotely, interested in this problem or > does she just suck it up and put up with it. > > > > > Regards, > > > Adrian > > adrianske...@me.com > > > > > -- The WA Macintosh User Group Mailing List -- > Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > Settings & Unsubscribe - > <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug> -- The WA Macintosh User Group Mailing List -- Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> Settings & Unsubscribe - <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>
