DO you have version 2.1.2 or version 2.2 of the OS? I've looped ok with those versions.

You might also invest in the AWAVE program. It's a dandy inexpensive shareware utility that I use in conjunction with Soundforge.

I'll sample or extract a wave file in Soundforge, edit it and then convert the edited file into a KSF (Trinity Korg Sample File) with AWAVE. Awave also lets you do your keymaps and script files. Hence you don't need to do the "Edit drumsample routine". Can find this utility under AKAI section of Synth Zone.