my toolbar has

[electricfeel]

went all weird help

 

[not so gray matter]

Do you normally use a theme? If so, try to apply it again.

If you don't want the big icons, right click taskbar > properties > use small icons

 

[Pusspa]

looks like you need to right click on the desktop then select 'personalize' then choose an aero theme maybe?
edit:lol yeah what he said, lol we posted at the same time!
edit:lmao and the next post too, but he posted after us!

 

[Crispy]

Right click on the desktop go to "Personalize" and click on "Windows 7" under "Aero Themes"

http://www.sevenforums.com/tutorials/280-theme-change-save.html