PowerBook Keyboard Malfunction

[Montana Mike]

Suddenly the 3,e,d and c keys of my Powerbook won't work. They were working fine earlier today, and I didn't drop the machine, spill anything on the keyboard. Any idea of what may be going on and how to fix it? Thanks.

 

[RobbieG]

Something similar happened to my Air keyboard with no apparent reason. It doesn't type b, d and l. Although it types those letters in capitals. Haven't found a solution yet. Will let you know in case I do.
I' going to a Mac dealer tomorrow to have it checked.

 

[plasticparadox]

Are you sure you didn't activate NumLock by accident?

 

[RobbieG]

Not possible in my case. Air doesn't have num lock

 

[RobbieG]

Solution (so far)

I got my problem solved so far. This is what I did:

Macintosh HD/User (whatever your user name is)/Library/Preferences/

Then I dragged the Preferences folder to the Desktop.

Then I restarted. I checked that the problem was solved and threw to the trash bin the folder I had dragged to the desktop. And that's it.

I was told that if the problem reappears I should reinstall the system.
The problem might be the result of malfunction during migration,