Okay, iTunes was messed up as in it wouldn't open at all; if I clicked it in the dock, the triangle would appear meaning it's open, but a window would never show up and the only way I could close it would be to restart the computer by holding down the power button. (It wouldn't quit or force quit.) So I deleted it. Then I downloaded the installer from the Apple website and went to install it. When I got to the actuall installing part, it gave me three options of "iTunes," "iPod drivers" and "iTunes phone drivers." All three were greyed out and if I clicked "Install" it would tell me "iTunes cannot install. There is nothing to install." Is there a way I can get iTunes back?