I just noticed this the other day when my friend had his day old MacBook out and I was helping him set it up. When I sat it next to mine, I noticed that his keyboard lights are WAY brighter than mine. Then I started realizing that they used to be brighter back in the day. What could be causing this? Could it be from an application? My MB is only 5 months old, and I've had the Moshi Clearguard for about 3 months now. Do you think the cover would have anything to do with the lights being weaker? This is puzzling... Has anybody else noticed this?