EPS rack bugs me

ANYBODY outthere who ownes an EPS16rack... maybe some of you can help.
I purchased an epsrack and it seems impossible to select a wavesample in MULTI-MODE via a midikeyboard ('edit instr.>WS=ALL). it works fine on my eps16KB..so why does it NOT on the RACK???? ..do I need another OS..my MIDI setup in the rack is OK ,I guess.. please HELP!!
tnx A.Tyrell,Holland

i own an eps16+ rack and can select wavesamples via midi(though sometimes i wish it could be turned off). i use os 1.3 which i believe to be the latest, my only guess is it's midi related, maybe try hooking up only your controller to the eps loading an instrument into say track one and testing this out to see if it works, if so keep adding your midi gear and connections till you finally hit a point where it won't work....troubleshoot.