I've tried several Dell keyboards with the Pi, and all the ones I've tried (they're definitely not faulty, work fine elsewhere) "bounce" horribly - that is every so often it doesn't seem to detect I've released a key and will thus act like the key is being held down until another is pressed. This gets rather annoying very quickly!
A Logitech keyboard I had lying around works fine, so it's not a problem with the Pi (both Pis I have display the same behaviour.)
Is this a known problem and if so is it solvable (without changing the keyboard?)
Currently running the default Debian squeeze distribution.