I have a 1990-era Mac Classic running Opcode's EZ Vision software. I have a brand new serial cable connecting the Mac to a Studio 4, using the modem port. I have told the computer I am using the modem port, and the Studio 4 is responding with MIDI in signals from my keyboard, but when I attempt to record and playback midi lines, there is no midi out from the Studio 4. My documentation with the Studio 4 says that I only need 1 or 2 MB to run OMS, but now the one you download says it requires min. 8MB to run, way more than a classic. Is there an old 1MB version of OMS out there that I can download to solve my problem, or is there something else I am doing incorrectly? Thanks for your help.