XENIX floppy disk problems

[ORCUTT at cc.utah.edu]

Thanks to all that replied to my previous posting.  Only one
other person had experienced a similar problem; his had been
caused not by the disk drives or controller, but by using
a 16-bit RAM card in a 386 PC.  I have the such a beast, because
the original Intel iSBC only came with 512k memory on the
motherboard and the expansion memory began at 1 meg, so
we got an AT memory card to fill the area between 512k and 1 meg.
Has anyone else seen this?