DEAR....
you check the following things in your laptop........
When all of your options are exhausted—you've tried other power cables and batteries, you've checked and rechecked your settings, you've fixed any potential software problems—the problem is likely found inside the machine. Several internal parts can cause problems when they malfunction or fail. Common culprits include a faulty motherboard, wonky logic boards, damaged charging circuits, and malfunctioning battery sensors. and in last you Contact your manufacturer about what repair options are covered under your warranty, or call up a local computer repair shop.
I followed the helpful hints in the plugged in, not charging forum post here http://forums.cnet.com/7723-19681_102-345945/plugged-in-not-charging/ and even though it does charge for the first 30 seconds of starting up, as soon as all the programmes start running it stops.
The laptop was recently in for a new motherboard and I'm starting to think there is a damage charger circuit. Would this be the case, or could it be something a lot more simpler as I really don't want it to go back into the repairers for a lengthy spell.
Please help.

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