Screen showing funny lines and colors.

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.

Try booting into safe mode. Chances are that you have set the screen resolution and refresh rate to some value that the LCD cannot handle. That is why it works until Windows takes over. Once you are in Safe Mode you can get things under control.

If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Take it to a repair shop.

the actuall screen LCD is bad.
in most cases.
supper common failure.. 2008 PC.
see page 31 , part 5 here. bingo, change that out.
there are 2 types used, only your full PC part number on
the service tag show this, post that and we go to the HP parts surfer and look it up.

http://h10032.www1.hp.com/ctg/Manual/c01918142

Apparently your Acer cannot find the operating system. As soon as the Acer logo comes up, there should appear in one of the bottom corners "F" & a number should appear. Immediately start pressing that F number (top row of keyboard). This should take you to a boot screen. Scroll down to boot sequence. Hit enter. Make sure boot-up sequence is CD or floppy drive first, second should be HDD, then escape. Restart computer. Should then boot off CD drive. I am assuming you have an operating system (XP, windows, etc.). Let me know if this doesn't work.

hi there.

for this, kindly check the BIOS mode of your machien first to know if the pink lines will still show there and if it still show then you may wanto contact your acer support to arrange a screen repair or replacment since issues like this are usually cause by dead pixels or display driver problem or display driver updates issues

you may use the given phone number below to contact the acer support if yoru screen shows the pink colors on BIOS so they can arrange a repair or screen replacment 800-816-2237

Connect an external display to the computer. If the lines and distortion shows up on the external display its the video card, which is attached to the logic board. So, the whole logic board will need to be replaced.
If the lines and distortion don't show up on the external display the issue is the LCD module, which will need to be replaced.

Try hooking an external monitor. If it will still show on the other display, possibly it is a video card problem. But I highly doubt it. Usually for this issue, it will have a good display on an external monitor. Try if it will still appear n the BIOS page. Press F2 several times immediately after turning the computer on. If problem still shows there, then it is the LCD that is causing it to happen. You need to replace the LCD.

Tries a little Wd40 might get it out.

I'm afraid, its problem of LCD Panel (screen).
LCD Panel replacement is only solution for this problem and will cost you 70% of TV price, please contact nearest Sony service center for LCD Panel replacement.