A Reply from the XTM people on Windows 3.0 installation (December 11, 2003):

Colour will not work because on the MCGA display Windows will 
choose a 640 pixel wide monochrome mode, rather than a 320 pixel 
wide colour mode.  We have not tried very hard to see if it is 
possible to change this behaviour, so we have no suggestion to 
make - we suspect it can't be changed.

In the olden days of Windows 3.0 the mouse driver was built-in to 
the operating system and could not use a plug-in third party mouse 
driver, so it ignores our driver and tries to use the hardware 
directly - which of course doesn't work the way it expects.

One thing we tried, and you must NOT try, was plugging a serial
mouse into the RS232 port.  Since the serial mouse draws power
from the RS232 port, it pulls a LOT of current from the plug,
and we burned out the serial port on a Psion playing with it... :-(
The good news is, it actually worked, right up to the bit where
it burned out!

Without a mouse, Windows 3.0 is not useful, which is why we
didn't bother trying to improve the screen modes.

Sorry to disappoint, but without full VGA and a better mouse,
Windows on XTM is no more than a neat party trick.

    NB Info Support Team