bogus cluster size

Booting Suse 7.2 I get everytime and again a failed message on the screen. Looking for the reason I found that "fatfs bogus cluster size is " is the start of a search for a fruitless search. Linux is trying to do something with a "dev 16:41 " device. How can I get rid of the failure message and of the bogus cluster size (whatever that may be ;-))