Release notes:

New Features

- Pad backlighting can be activated using MIDI note messages ... recorded using pads, with KeyLab as MIDI destination, pad’s LEDs show what have been played).

- Compatible ... control number LSB (fixed).

Known Problems

- Regarding pad backlighting feature, if several note messages are sent ... of them may be ignored (and the corresponding pad won’t light up).

KeyLab firmware Update:

... highly recommended to always use the most recent driver version available

Do not forget to check with ... in order to stay updated on the latest drivers, software and games

Try to set a system restore point before installing a device driver

This will help if you installed a wrong driver

Problems can arise when your hardware device is too old or not supported any longer