Have you updated your BIOS any time recently?
I saw a BIOS version 1.41 dated 12Nov on the Lenovo website.
Are you running any Virtual XP mode sessions under Win7?
Bios update did the trick !
the Lenovo Thinkvantage software said everything was up to date
but after looking into it there was a BIOS update availeble, everything reads normal now:http://d.imagehost.org/0846/Lenovo_after_bios_update.png
Thank you very much, if you are ever near Brussels (belgium) i'll buy you a drink