Num lock light keeps flashing

Hi,
I have Lenovo 560 and since few days I am observing a strange problem.. The num lock on keypad keeps toggling itself and the num lock light keeps flashing.. ?i dnt know whats the problem is.. any body faced similar problem?
please help.
Thanks,
Rajan

I don't think it is serious enough to return it. I have problems with my num lock and caps lock keys also, but I think it is a problem with the PMU firmware. Quite a few people are having an issue, so I don't think it is a hardware problem.
There are also people having other problems related to the PMU, such as the coloured lines at startup. I suspect we will see a firmware update at some point that can hopefully fix it.
My advice would be try resetting your PRAM with command-option-p-r at startup (until you hear the second chime). Or resetting the PMU by turning off the 'book. disconnecting power and taking battery out, then pressing power button for 5 seconds. Then turn it all back on again and it should be ok.
Stay away from 10.4.7 too, it's just trouble.

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I don't think it is serious enough to return it. I have problems with my num lock and caps lock keys also, but I think it is a problem with the PMU firmware. Quite a few people are having an issue, so I don't think it is a hardware problem.
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