My wife's laptop Inspiron 1521's screen goes black after between and hour and 3 hours use. It is intermittent, sometimes working ok for a few days.
We have put a new battery in it. Could it be getting too hot or not getting enough current from the 2 prong outlet she uses? It is very annoying to be typing an email and the screen goes black! Thanks for any help.
Excessive heat could cause that, although you should experience some video stuttering before it happens. make sure the airflow outlets are free from any obstruction. Use a pressurized air can to clean the vents, and do not use the laptop... on a lap. She is getting enough power from the outlet, otherwise the battery would not charge.