I’ve just installed Lotus Notes 8.5 on Ubuntu and the first thing I noticed was the horrible fonts used in the interface. I’ve searched for a setting, but couldn’t find none so Goggle helped me: Notes is looking for a font called Luxi contained in the package ttf-xfree86-nonfree.
Installation is very simple:
sudo apt-get install ttf-xfree86-nonfree
Insert your password and you are done.