HANSMEX YOU ARE A GENIUS ! [:D]

the solution is very simple ... pfff ! [*-:)]
On KDE, an application manages the copy/paste : klipper !
I have desactivated this application and "bazinga", it's worked fine ! [\:D/]

Thank you for your big help, I can continue my project for my house with this ...

Hello,

Thank you for your response, but I used 2 différents PC DELL with ATI or Intel video card.
I'm on 64bits, make a difference ?
I use already the installed version.
I have tested without java installed and in command line with different version of java (1.6.0_32 and 1.7.0_06) and executable ...

Hello,

I "reopen" with topic because I have the same problem ! [:(]
I have KDE 4.4.8-3 on (K)ubuntu 12.04 and SH3D 3.5 with the last(?) plugin CopyAsNewFurniturePlugin-1.1.sh3p
After click Tools → Copy as new furniture, I can't paste the furniture.
I don't have any log in my konsole for debugging ...