A bug exists in Pentium machines using PCI bus. The bug involves the 16550 UART chip.
The bug affects serial communications in Windows 3.1 and Windows for WG.  We have
drivers that fix the problem.  The WinWG driver was supplied by Microsoft and the
Win 3.1 was provided by Gateway but will work on all machines.  If someone would like
to supply me a place to upload these drivers to, we’ll make them available to
anyone (BioStore customers or not).  An interim workaround involves changing
the [386 Enh] section of System.ini to include the following line:
COMxFIFO=0
Replace x with the COM port you are using for meter communications (i.e. COM2FIFO=0)

T.J. De Pietro
BioStore International Inc.
805-250-9709