Cleaning the keyboard is a good idea, but this problem has been
popping up in the newsgroup for at least a few weeks. There hasn't
been an absolutely definitive answer, but a lot of people have had
the problem solved by scanning for, and removing, spyware. So
Kristian, download and install the free programs Spybot Search &
Destroy from
www.security.kolla.de and Ad-aware from
www.lavasoftusa.com. Be sure to update these programs before running
them, and run them both since they complement each other. It is best
to run antivirus and spyware removal tools in Safe Mode.
Malke