Ok so I turned on my computer today and i see my deskbar is messed up instead of showing my windows like internet, itunes, media player, etc. starting on the left side and going to the right they are all on the right and i have to scroll down on an arrow to switch my window how can i get it back to normal? Please help its really fusturating

a deskbar is like the bar at the way bottom on this picture here's the link:

http://www.filetransit.com/images/screen/eb4d224d5...