Can't update my iphone 3GS to ISO 5
I have been trying to update my iphone 3GS to IOS 5, I am currently running 4.3.3 an have itunes 10.5
When I connect to itunes it will automatically offer the update, when I run it, it will take around 2 hours to download the software, it appears to download and then moves on to processing file. This is were it will crash and I get the following error message
'There was a problem downloading the software for the iphone. the network connection timed out.'
I have tried logging out of itunes and then back in near the end as someone has suggested on a previous post but still have the same issue
Can anyone help !
iPhone 3GS, iOS 5