update libreoffice in synaptic -->error dependencys
... Knoppix out of the box isn't designed for update or upgrade. Have a look at HD-Install Warning

Please do not mix questions, informations and bug-reports in one posting.

Greetings Werner * http://www.wp-schulz.de/knoppix/summary.html
Own Rescue-CD with Knoppix (Knoppix V6.7.0 remaster)