[Inkscape-user] Save by default in Documents (MacOS X 10.6)

Hi,

I want to fix in our schools the default place to save in Inkscape. By default, it saves in home directory, i want to change it to Home directory/Documents. Even if i choose it one time, ween i relaunch Inkscape (0.4.7), the default place is always the same.

An idea ?

Many thanks in advance

Christian