It might be because the game doesn't allow EMS and/or XMS (the latter would be surprising).
Go into the configuration file of your DOSBox version (Dosbox.conf, open it with notepad it's in fact a .txt file in disguise) and scroll down until you encounter those lines, by the end of the file:
Quote:
[dos]
# xms -- Enable XMS support.
# ems -- Enable EMS support.
xms=true
ems=true
|
Try changing "ems=true" to "ems=false" and try again. If it still doesn't work, then try the same with xms.
Do not forget to change this back if you wish to play other games with DOSBox.
Hope this help.
k:
Edit: Rats, the Mouse beat me to it. LOL