After Upgrade to IconBar Scrambled / Destroyed


on Ubuntu 14.04: after upgrading to LibreOffice, the iconbar is scrambled:

  • There are no icons anymore visible, just clickable texts.
  • Some functions appear twice (like: font setting (bold, italic, underline))

See this screenshot: screenshot

This behaviour is true at least for writer and calc.

How can I set it back in the condition before the upgrade?

Thanks in advance!

(edit: activated screenshot)