Any suggestions about this iPod/iTunes problem?

OK, this is driving me insane.

I woke up this morning, plugged my iPod in to add two songs to it and got the typical message: iTunes does not recognize this iPod please disconnect the iPod and reconnect it, if problem continues uninstall and then reinstall iTunes.

I can't think of anything else to possibly do.

I uninstalled iTunes, reinstalled and still had the same problem.

I borrowed my father's ipod chord-same problem.

I borrowed my mother's ipod chord-still the same message.

I checked all of my software-all are up to date and not in conflict with iTunes.

All drivers have already been updated.

I restarted the iPod-same message.

I restored the iPod-same problem

I scanned the iPod-no problems were found.

I uninstalled the iPod and reinstalled it to my computer-same.

I ran a diagnostics check on my iPod, iTunes program and my PC-no problems were found.

I tried downloading an older version of iTunes-not successful.

I checked my firewalls and proxy settings-all fine.

I ran a check on my USB ports, all in working condition-all connect with flash drives, external hard drives, cooling platforms and other media devices with no problems.

Completely aggrivated after this and not wanting to have to resort to corrupting my iPod, which I had to do last time, I connected my iPod to my father's laptop and it-works just fine! I ran a few more dianostic programs and came up with nothing. For all my computer's concerned everything is working fine.

.

I finally did find one problem but I'm unsure about how to fix it and if it's actually going to help. I've also found that other people are having the same problem but its not affecting their iTunes program's ability to sync with their devices like it might be affecting mine. I'm not even convinced that its the problem.

Plain and simple-iTunes does not recognize my internet connection.

I've synced my iPod before without an internet connection which is irrvelent because there IS an internet connection. I know in previous versions of iTunes an internet connection wasn't necessary to sync so is it necessary now with the latest version?

Now details of my computer:

NV55S05u Gateway

6 GB DDR3 Memory

AMD Quad-Core Processor

640GB HDD

Windows 7 64

I'm not sure if any of this data will be useful but hey it can't hurt. Since my iPod connected with my father's laptop without problems I know it's probably my computer that has the problem but I would like to at least narrow down the problem either being software or hardware. If it's software I can probably take care of it on my own but if its hardware-well that's out of my comfort zone.

Is there anything else I can do before I hand my PC over to someone else?