Windows 3.11 needs the graphics adapter setup properly, which usually requires installing drivers from the chip manufacturer (just like today).
Dosbox, by default, uses S3's 864 adapter. The drivers for it can be found here:
http://www.classicdosgames.com/drivers.html
A Howto on changing the adapter and installing custom drivers can be found here:
http://www.classicdosgames.com/tutor...ceddosbox.html
O'Dell and Colonization look better than ever!
