This problem is solved by manually installing 'compiz' component with
synaptic. so I think somewhere in the line Compiz is removed from the
dependencies while still needed for desktop-effects
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titlebar dissapearing with compiz
https://bugs.launchpad.net/bugs/217898
You received this bug
Was a temporary upgrade hiccup, should be fine now. You should not do an
upgrade if it removes packages you care about, never just blindly
upgrade.
** Changed in: compiz (Ubuntu)
Status: New = Fix Released
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titlebar dissapearing with compiz
https://bugs.launchpad.net/bugs/217898
You