Quote Originally Posted by [DT]
Exactly. The UI you see - like most OS's - is just another app [for all intents and purposes] - so if it goes down, you can run another instance of it.
That will only work if there is something wrong with the first instance, if someone has played with the settings (e.g. someone has played with the settings, and placed the taskbar at the top or sides of the screen and made it hide when not in use)

so what i suggest is try moving the cursor to each 4 sides of the screen and see if it appears.