I am using Linux Mint 14 (MATE) with Cinnamon installed. Cinnamon failed when I tried to delete an item on the menu with menu editor. The system froze, so I logged out by pressing Ctrl+Alt+Delete.
When I logged back in, the desktop panel was not loaded (shortcuts were there as normal, and right-click works as well). I can barely do anyting but get the terminal with Ctrl+Alt+t. But all the dialogue windows are presented without any frames.
Here are screenshots:
I tried reinstalling Cinnamon in the MATE desktop interface (it works fine), but it failed to solve the problem.