I'd like to ask a few things of you first.
1. Play with your numlock and report whether the keys work when the numlock is off.
2. Try resetting your keyboard shortcuts (click on the Play/Pause and such and reassign the keys) in System->Preferences->Keyboard Shortcuts.
I'd like to ask a few things of you first. >Preferences- >Keyboard Shortcuts.
1. Play with your numlock and report whether the keys work when the numlock is off.
2. Try resetting your keyboard shortcuts (click on the Play/Pause and such and reassign the keys) in System-