I wish there was the function to able to select walls in the left hand panel just like the furniture, so they can be edited etc. Or maybe a panel jut below the furniture panel.

I have located and renamed the file that was causing the problem. V4 runs as it should.

I am using XP SP3. There was no splash screen. Failure to launch. I will look into the file issue. Thanks

I downloaded V4 and can't get it to run after installation. I didn't have that problem with V3.7. I have reinstalled V3.7 to conform that it runs on my computer and it still does.

I swapped over the Sweethome3d Jar file from the 3.7 lib folder to the
V4 lib folder. It ran from the v4 folder, and ...