x20 and external Logitech Keyboard

[Lt.Dan]

Hello,

I'm from Germany and my English is poor.

My Problem is, I'm using a x20 and currently I installed a new Logitech wireless (UltraX Media Desktop) Keybord-Mouse-Set.
That works fine, but now the original Thinkpad Keybord does not what it shold do. F.e. if I press "K" it writes "2" or if I press "M" it writes "0". Even when the Receiver is not connected.
What can I do?

Thanks in advance.

[Lt.Dan]

I solved the problem. Don't punish me. The NumLock was activated.
Sorry.

[Adam]

Haha.

By the way, you're english isn't bad at all!