iTunes on mac freezes when any iOS device connected

Hey all,

So, have been battling with this for 6 months now and is seriously getting to me. I installed an iOS 7 upgrade on my itouch 5g about 6 months ago (7.1 I think it was), and ever since whenever I connect my iTouch (or any iOS device) with iTunes open it completely clogs up my computer. I'm able to force quit iTunes after a bit of foot tapping, but I'm basically never able to put new music on my iTouch. I've also followed every step on the help file given here: 'iTunes: May become unresponsive when connecting iPhone, iPad, or iPod touch' - the only issue is at the end where it says 'If the issue does not occur with a new blank iTunes library, quit iTunes and switch back to the original library as follows...', it DOES NOT give you instructions for ' If the issue STILL DOES occur with a new blank iTunes library...', Which is the exact problem I have.

It's bizarre, as it's fine on another user on my mac, but on my primary user, regardless of library, it still makes my laptop freeze. Have wiped and restored by iTouch, but that didn't do anything. In the mean time have put my iTunes Media in a shared folder so it can be accessed from the other account, but it's still a massive pain having to change users to update, and having to import songs across to the new library. Help on this would be massively appreciated!