Since last two days every time I turn on my Dell Inspiron 1440 laptop, I get the following message:
"The AC adapter wattage and type cannot be determined. The battery may not charge. The system will adjust the performance to match the power available. Please connect a Dell 65W AC adapter or greater for the best system performance."
- I am using the 90W Dell AC adapter .
- The adapter is not charging the battery at all.
- The port connection is fine.
What should I do and Why has this problem come up suddenly ??