Magsafe adapter doesn't always work?

I've developed an interesting problem with my macbook pro. This happens in multiple places, at work, at home, and elsewhere. If the magsafe charger is plugged into a "Power Strip" it may or may not work. It's a 50/50 chance. If its plugged directly into a wall it always works. If I plug it into the power strip with just my printer on it, the one I usually use, I get a 50/50 chance. If I unplug the printer so that it is the only thing on that power strip it still only works 50% of the time.
Same thing at work and at other peoples house. No matter what kind of power strip, it doesn't work 100%. This problem seems to slowly getting worst also and it didn't happen when I first got the laptop.

If you can consitantly make it fail on any powerboard, i'd recommend you show someone at an apple store. If it's faulty then Apple will replace it.

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