There is an option in the graphics settings called "Single core optimized"
Even if you have a dual core cpu, it could help with rendering since the GPU is at the very minimum of the spectrum.
Also, make sure you have the very latest AMD drivers, they could still help with issues for the x1600 on current games.
In the more advanced options, i would recommend turning off HDR, lowering texture quality and vegetation quality.
If this does not fix the issue please contact us.
http://www.larian.com/dragonknightsaga_support.phpSee "contacting support" section
