iTunes Authorize?

Hey I have my itunes account authorized on one computer. Can someone tell me what happens if I deauthorize it? and then I authorize it?

It's because I have a problem in my itouch. Every time I go to see the appstore, it automatically pop's out a message where I have to put the password of my account.

I am trying to solve it but I don't find any information about it.

More information: My iPod has the lastest firmware 3.... it's a 3rd generation ipod.

when you deauthorize, all the apps purchased on that account will not work when you sync your ipod because "it is not authorized to use them".

when you authorize it again, all your apps are usable again.

i think the pop out message could be because it wants to check for any updates for your apps, but im not entirely sure.

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Last edited by 5jusername; 06-10-2010 at 07:49 PM.