Screen goes blank

u have a problem with your display connections... opening and closing the notepad too many times does that... take it to a techie or surf u tube on how to videos...to change display for acer d150

Computer Keeps Rebooting - cannot access Safe Mode
1. Boot up with Windows installation CD 2. It will give you the option to use RECOVERY CONSOLE 3. Type chkdsk to check disk - this fixes bad blocks and moves data to another area. 4. When completed, remove Windows installation CD and reboot computer

Sound like it is a connectors problem inside the screen

that means that some cables might be cut and when you move your screen, the contact goes and comes up, the solution is to replace your screen, or you can open it and check the cables yourself, and try to repair it by detecting witch cable is causing the problem and fix it

try taking out the batt and leave the mains plugged in, if it boots up you need a new batt

Have you check the cable that goes from the screen at the motherboard? Usually this cable is not visible; it is hidden it one of the joints between screen and main body of the notebook.This cable is the most common problem in the cases that the notebook keeps on working although the screen is black. You can check it by opening slowly - slowly the screen all the way up and closing again slowly. If there is a cut at the cable your screen will get black at a specific slope.

In case of a problem or clarification, don't hesitate to post me a reply before rejecting my answer.
If you are satisfied, accept my solution.

Thanks and regards
Stelios
direct fixya link: http://www.fixya.com/users/technical114

bad contact between screen and keyboard. Think it can be easily fixed at local computer store:))) Hope this is helpful

Go to your settings menu and adjust the bar that says to turn your screen off after a minute.  If that don't work then have IT open this puppy up and replace the bulbs or inverter.

ACER PICTURE PROBLEM – MY SOLUTION

I had a similar problem, but I got a picture before it broke up and went off. The screen was backlit, but no video (screen was receiving some power).
The LCD needs a very stable voltage to work, this is provided through the LCD connector ribbon. In my case the ribbon was damaged and replaced it.
I have had no problem since.

I discovered this through trial and error; I first changed my transformer power supply and then the video inverter card.

You may find the link below helpful as it contains articles that photographically show you how to open the laptop for repairs.

http://www.insidemylaptop.com/category/1-acer-laptops/

Hope this helps. (Please rate my advice)

your battery may be getting to weak to work.
try booting without the battery.