So, my computer charges fine, the charger seems to be working, BUT, when I plug in the charger to my computer, the LED light comes on as normal (Orange if charging and green when full) but sometimes the light goes from orange to VERY dim green while still charging, and sometimes it just does out completely. It appears to still charge my computer fine. The weird thing is, unplugging it and plugging it right back in makes the light come back on to the appropriate color, but it eventually it will dim/go out again. Any ideas as to what this means? Is something defective? Is this normal?