Hello everyone,

  I have recently installed SDM-Psi 6.21 in my computer whose system is Ubuntu 16.04.  Though I could see the toolbar on the top of my screen, there was nothing happend when I clike on the tags like "Tools" or "Help". Thus I can't change my preference or something others. 
  I can not figure out what happend. I'm wondering if someone has met similar situaion and what should I do.

Thank you very much!

GuoLei