I have an IBM PS/2 with a 66Mhz 486 chip that I want to use for doing midi sequencing under Windows 3.1. I bought a midi adapter for the printer port and discovered that I could get midi out, but not midi in. I've been told that the problem is probably having an older, unidirectional printer port. I'd like to replace the printer card with a (hopefully) inexpensive bidirectional upgrade. Can anyone recommend a card that will work properly with this hardware/sofware configuration? Is the microchannel architecture of the machine an issue? BTW, I'm not planning on using it to do printing!