I've had issues with several expansion boards in my 1000TL, specifically parallel port adapters.

I have a handful of Xircom PocketEthernet 3 adapters that work OK in my 386SX system, using either of my two available LPT boards.

In my Tandy 1000, they all report no PE3 adapter present, no matter if the on-board LPT is disabled or if they are assigned LPT1/2/3/4. I've tried disabling bidirectional/epp options and everything else I can think of. Any idea what might be up?