real common you don't have the proper libs on the disk.
go to
http://www.dcecom.de/pub/driver/68060_20011029.lha download the 68060 libraries
rename your 68040.library to 68040old.library
rename the 68040dummy.library to 68040.library
just copy the 68060 library to your startup disk
every thing will work fine then
Kurt