Comment 12 for bug 173350

I see this bug as well in Hardy i386 beta (up to date) on a desktop computer. I posted about it here:
http://ubuntuforums.org/showthread.php?p=4599879#post4599879
At that post another person said it did not happen in earlier versions.

Even using the keyboard layout utility to assign the capslock light as the alternative layout indicator didn't make it stop responding to the capslock key.

I just used the workaround and now my capslock light is permanently on :S
Maybe it will get resolved when I reboot