Is there a way to get M2TW to render more troops?

[Lamprey]

Originally posted in the wrong forum... sorry mods

I'm playing on huge unit sizes for the first time and it is really fun, terribly epic battles. However, I'm having trouble with some larger battles, anything over 3,000 troops the computer won't render and instead gives me a message during a battle which reads "enemy reinforcements delayed because your computer sucks, upgrade" (this is not quoter verbatim :) )

My computer is decent enough, GeForce 7900GT, P4 3.2, 3GB RAM so I feel like it should be able to render that no problem. Is there a way to set this? A command-line setting perhaps, like "medieval2.exe -unlimited units"? Or perhaps I need to modify one of the descr_ text files?

[sapi]

open the medieval2.preferences.config file in your root m2tw directory and modify the following:

unlimited_men_on_battlefield = 1