Thanx for this advice, new account worked perfectly so it's defo the data that was imported. What can I do now?
This means it is almost sure to be in the Users Library Folder, the first thing to think of is iTunes Preferences, it is located in:
/Users/****/Library/Preferences
**** is your Home Folders name
the files you should move are:
com.apple.iTunes.eq.plist
com.apple.iTunes.Gracenote.plist
com.apple.iTunes.plist
com.apple.iTunesHelper.plist
Actually, any file starting with com.apple.iTunes , move them to the desktop before launching iTunes, launch iTunes and see if it happens again, if it does drag the files back to the Preferences folder to get your former preferences back.
Keep in mind that the Users Library Folder is invisible in Lion and Mountain Lion, if you need assistance to make it visible just ask, actually I will tell now.
To make the Folder visible open terminal and type the following
chflags nohidden /Users/****Library
Replace **** with your Home Users name