Emu XL-7 & MP-7 User's Group

Does anyone out there know if it is ossible to disable the MIDI clock 
receive function in the XL7? What I am looking to do is *on occassion* 
just use the machine as a big proteus using the external sequencer - no 
internal (xl7) sequencer going - can't find any info on this anywhere 
and seem like as long as the MIDI input cable is connected the xl7 
plays - no way of stopping it.

Also anyone who has successfully used E-loader on a Mac w/UB MIDI 
interface? So far cannot get that to work.

OK - thank you all

Ed