It's called the Task Bar.
Right click on the Blue Piece
If "Lock The Taskbar" is ticked left click it to make the tick go away
Left click on the blue part of the taskbar and hold the left button as you drag it to the bottom of the screen.
Right click and select "Lock The Taskbar" with a left click to make sure it stays where you want it.
Peccavi
February 2009