Some of the parameters in the [http://www.cafu.de/wiki/mapping:cawe:editingtools:editterrain#terrain_generation Terrain Generation] dialog have wrong scale.
For example, the values for Lucanarity should only be a tenth of the indicated value (e.g. 2.0 instead of 20).
This is probably a result of wxSpinCtrlDouble not being available in pre-2.9 issues of wxWidgets. The integer controls should be replaced with properly ranged wxSpinCtrlDouble equivalents.