Hi Philippe,
Sorry for the little delay.
Yes the patch is cumulative, so it should work ok.
Please do send the Dxdiag file, maybe it helps. The problem sounds really odd because random crashes shouldn't happen anymore.
In the 1.05 patch we fixed a bug in the font system that caused random crashes, so perhaps this is a variation of that bug. We can test it by downloading Unicode fonts from
http://www.shadowgroundsgame.com/unicodefonts/Just unzip the package to the Shadowgrounds root directory. Let me know if that helps at all...
Best,
Joel
Frozenbyte team