Hi Guys I would like to share iwth other users like me that I have solved the libreoffice issue by installing glu (xorg collection).

before, when I clicked on the icon, libreoffice started for a split second and nothing. If I tried to open a .doc file, after processing for a while, nothing happened either.

besides, /usr/bin/sbase output was : "usr/lib/libreoffice/program/soffice.bin: error while loading shared libraries: libGLU.so.1: cannot open shared object file: No such file or directory".

But after installing glu it is perfect!
now /usr/bin/sbase opens libreoffice and I can open every .doc files with it.

http://pastebin.com/Jc3Vm7wv

best regards!