Compaq 1610 Reference Manual page 97

Can't transfer files
using the IR port.
Can't transfer more
than one file at a time
using the IR port.
The IR devices are not
set up properly.
The sending or receiving
device is not configured
properly for IR.
The receiving device is
not compatible with the
sending device.
The handheld PC is
designed to transfer one
file (or 25 Contact cards)
at a time when sending
data to another device.
Set up the devices
properly. See Chapter 7,
"Using the Infrared
Feature," for setup
guidelines.
Configure each device
for IR according to the
manufacturer's
instructions. For
additional information,
see "Connecting With
an Infrared Port" in the
Windows CE Services
Help that you installed
on your computer.
Transfer files another
way (such as through the
auto-sync cable or via a
PC Card).
Transfer only the
recommended number of
files at one time.