Lately, (past couple of weeks) my Acer Aspire 3000 laptop has been powering off unexpectedly. It works fine when I am using it, but when I stop typing on the keyboard for some interval it inevitably powers off. Sometimes it will stay up almost the whole workday, other times it will power off in as little as 20 minutes. Usually, it takes a couple of hours. The battery is relatively new (6 months). I have tried various power schemes. Currently I have it set to "Always On" with all options set to "Never". I am up-to-date on Norton, so I don't think it is a virus. Please advise. I have lost important work becuase of this problem.
This laptop was purchase in 2005 so Acer won't help because it is out of warranty.