Num lock led flashes????

hi all,
i wonder if this has happened to any of u out there with a MB in the hand, the led under the num lock key flashes REALLY repidly.
here's how it happened: my MB was on mains with battery out, got my nano plugged in for charging, got itune on for some music, had the screen saver on with the mouse pointer at the hot corner and the lid open. then left it like tht for about 10 mins, came bk and found the led flashing like mad. when i press the num lock key the led went stead green (just like normal) the computer came out of the screen saver and when i press the num lock key again the led went off (like normal again).
my MB is my first experience of a mac, so im wondering if this led flash indicates some sort of work carried out at the bk ground or something.

Are you referring to the issue shown in this video on youtube?
http://www.youtube.com/watch?v=66gHnofCpUY
There is a thread of other people experiencing this and some possible fixes for you to try, such as resetting the PRAM or PMU.
http://discussions.apple.com/thread.jspa?messageID=2486843&#2486843
If those don't work, then I'd take it to Apple at a time you find most convenient... Best of luck
emac 1ghz, 2001 ibook 500 mhz, G4 ibook 1.33 ghz Mac OS X (10.4.7)

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Num lock led flashes????

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