[bmcd89]

hi i have an acer 5720 and it wont charge while it is turned on. instead everytime i try to plug in the ac adaptor the lights on my laptop turn from green to orange and start to flash. i have had the laptop less than a year although it was a present and the person no longer has the reciept so im screwed. i doubht its the battery or adaptor because it charges perfectly when turned off. although when its on and the battery starts to die and i plug it in ther is a slight noise as if sumthing is turning off or even on mabey and im sur it has sumthing to do with the problem. the noise is not the fan though because i can hear it working away. can sumone please help because acer just seem to be totaly useless. thanks