NADEEMF Have you tried disabling any 3rd party plugins, ie quit iTunes, move '/Library/iTunes/iTunes Plug-ins' to your desktop, and reopen iTunes. If no better, try the one in your personal Library.
If it cures it you can try reintroducing the plug-ins until you find which one(s) cause the problem. (Version 7.0)
The opinions expressed in the reviews are not necessarily those of MacUpdate.
MacUpdate waives any legal binding related to the comments and opinions expressed in the reviews.
Please contact MacUpdate politely if you wish for a comment to be reviewed by MacUpdate for removal.