this midi processor can sometimes act a little crazy and unpredictable... which most of time is good :)

But the old fail safe method!

draw um some notes in key editor.. ctrl + A (selects all notes)..
menu MIDI/ logical presets/ Standard Set 1/random notes (C3 to C5)

if by per chance u want another pitch scale, just create yer own logical preset...

Go to Midi/ Logical editor (or ctrl + A (selects all notes).. menu MIDI)... now bottom right load preset random notes (C3 to C5)... change parameter 1 form 60 to what ever u want (> = than 0) and parameter 2 from 94 to ... (<= than 127)...

There u go the old nasty boring way! :P

Sorry I took a little longer 2 get back 2 ya on this!

Z