Grzegorz Sójka wrote:
Hi there,I have a problem with lyx-1.3.6. The mathematical signs like \cup \cap \int are not displayed. Instead of it I get empty square. I have no idea what I should look for. Please help. Thanks in advance for any suggestions. Best regards. Greg PS. I'm using X11-org-6.9.0
You may be missing the necessary display fonts. Have a look at http://wiki.lyx.org/FAQ/Qt for various ways to install suitable fonts.
/Paul
