Thank you Emmanuel Puybaret it works
i uninstalled and install again (32bit) and it works.
again, thank you

one more thing:
on the new version,when i build somthing and save the file and try to open it after few minute ther no problam and everything is ok.
only when i try to open an old file it open and showing me the message.

windows 7.
the version before the last was ok so i downgrade to it and still have the same problem

hi
i update to the last version and try to open previous files and getting this message :
"sweet home 3d will exit now ecause a fatal error in the 3d rendering system of your computer. please update the DirectX/OpengL drivers of your computer graphics card"

i didnt make any changes before i update ...

hi
how do i draw an upper wall,not from the floor?

if i have 2 diffrent hight of ciling and i want to connect them with an upper wall.

thnak you.