Emmanuel:

Under Ubuntu 10.04 SH3D v2.3 (the jnlp-version) behaves a bit strange these last days (weeks). When I open the program and draw a wall, everything is fine. I can insert a door or window, I can insert furniture.

But when I am not active for a few minutes, "half" of the program freezes. I still can draw walls and rotate the 3D view, but it's impossible to insert any further furniture.

Maybe there is a solution?

Hans