I am using LibreOffice 184.108.40.206 (Ubuntu 12.04) and the buttons to switch tabs in Calc are written with small fonts. They're so small I can't even read what is written on them. I could not find a way ...
I am not talking about the Win 98 look, but even with the gnome-integration installed buttons look a bit weird and there are sometimes black lines where there shouldn't be any. Why?