Simply loosen the front two screws for the fan attached to the heatsink, remove the two back screws from the fan completely.
Slide the fan back away from the keyboard about an inch or so until the keyboard clears the fan. When in good position, re-tighten the two front screws into the heatsink to secure the fan in place.
Check your LIBS: drawer, remove the Commodore 68040.library from the LIBS: