* Upgrading the flashplugin. Solution: deinstall the flashplugin before doing a system upgrade
* Nvidia-Twinview + unity. Solution: Don’t use unity
* Migrating .kde from 4.6 to 4.7: So far none, i made a new user
* Booting is hanging for 2minutes if there is no network connection.
Solution: So far none.
Resume: Don’t upgrade now