OK, but you can not type numbers dyrectly on windows desktop with any keyboard.
So... again - in what program you want to type? It should be something like Word, or Excell, or Open Office... or it may happen when you are renaming something on your desktop - like icons, shortcuts or some files, residing on the desktop... so, may you try to deskribe what exactly happens?
another thing to try - to attach an USB keyboard to your laptop and to see what happens then.
your topic was dropped and till now I didn't get anithing on my mail too - probably just filtered out