i'm using Linux Mint 14 Nadia. Today i'm experiencing a strange behavior. All program windows (Firefox, Gedit, Task manager etc.) do not have their top panel (where minimize, maximize and exit icons are). I cannot drag windows and have to close them by pressing keyboard shortcuts Ctrl+Q etc.
Also, running programs don't have their space on the panel. It is empty.
I've tried to attach a screenshot, but can't upload in .png or .xfc extensions.
Thanks for your ideas on what could be the issue here.