gryc_ueusp, Go to the link below and under the letter "T" scroll down to "Toolbar - Missing" and download then run the "Toolbar Repair Utility". It should correct your problem.
This is one of those times that windows loses it's mind and decides a setting is better off another way. Completely at random, the windows Explorer has lost all it's toolbars. Not a big problem, but still a minor annoyance.
The strange thing is that internet explorer, when opened and pointed to c:\ for instance has the appropriate toolbars. (plus IE's links bar) However, explorer is toolbarless, but there is apparently something that can be dragged, meaning the double-headed arrow appears but nothing is actually draggable.
screen capture with my comments:
Also, something I noticed that may or may not be normal behavior: When I double click on the icon at the top left of the title bar, it closes the window.