Hello,
first of all thanks a lot for this great and powerful program!

I have a problem, opening saved files on a PC running Windows 7.

If the "*.sh3d" contains only walls and rooms, there is no problem.
If it contains windows or doors, the file can't be opened. The error message says "Can't open home 'test.sh3d'"/ "Konnte Wohnung 'test.sh3d' nicht öffen".

On a PC running Windows XP, exactly the same file can be opened without any problems.

Can you help me to solve this bug?