Power Supply Led goes off randomly
Since quite some time I have noticed that mainly after putting the computer to sleep, the Power Adapter Led goes OFF. The adapter is firmly plugged into the wall outlet and this seems not to be the issue.
After I unplug it and plug it back, it starts to glow green.
Is it a serious issue? If that is normal, I don't care about it, but if that is a serious issue, I'd rather want it fixed.
Advices?
MacBook Pro, Mac OS X (10.4.11)