Have to re-install iTunes everytime I sync iPhone 4

Question

The most annoying thing ever, for ages I couldn't get my computer to recognise my new iPhone, after trying everything I re-installed iTunes and it worked. I then plugged it in the day after and it wouldn't recognise it was plugged in, it didn't come up in finder or in iTunes. So I re-installed iTunes again, and it worked. I synced up my iPhone twice more and have just gone to sync a 3rd time and AGAIN it is not recognised, and will not show up anywhere on my mac. Do I seriously have to re-install iTunes everytime I want to update songs or anything on my iPhone? I have tried everything that is suggested in forums and on the Apple site, nothing works except un-installing and then re-installing iTunes, but I can't do this everytime! Somebody help please??
Thankyou greatly.

Answer 1

Hi, this is a problem I'm having too, down to the last detail. I think I've found the solution, I'll see if I can't test it though.
In the past, I deleted 'iTunes Helper' from my LogIn Items...
This fits in with the symptoms, as a fresh launch of iTunes would run that, but then depend on it being in your startup items, unless of course you deleted it. This must be why restarting the computer is a recommended troubleshoot, if the process was stopped for whatever reason restarting woud get it to kick in.
• Go to  > System Preferences > Accounts
I'm guessing iTunes Helper isn't in the list, if my theory's right on this?
• Click the plus sign under the list.
What you want to add is part of the contents of the iTunes app, you won't be able to route to it traditionally.
While the File Browsing window is open (the one that dropped down when you clicked the '+'),
• Press Shift-Command-G
• In the field that pops up, paste this path:
/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app
and click 'Ok'. iTunes Helper is now in the list.
• Tick it
So that it will be on automatically at login.
I've not seen yet if this fixes it for me, but I have STRONG suspiscions considering the role of this app is to detect iPods and iPhones, and because of the particular work-around we've been using matching.
Best of luck to all of us! Here goes....