ITunes 7.0.2 unknown error [-50]

Question

I have a 4 gen ipod and was quite happy with it until the weekend. I was using itunes 6 something and had no issues. I decided that I wanted something smaller so I went and bought 2 gig nano.
All excited I brought it home and have had nothing but problems since.
I plugged the nano into my PC and got the message that I needed iTunes 7.0 or higher. So I went and downloaded it and was able to add my music to it. I then plugged in my 4 gen Ipod and things went to **** in a hand basket.
I would initially get the message in iTunes that it was updating and on the ipod it would say do not disconnect. Once updates were done (there weren't any) it would go to the new screen and my ipod would allow me to scroll through my music.
I then tried to make changes to my selection and iTunes would say updating but the ipod would not go into communication mode. It seems to close the connection between iTunes and my iPod, to the point that on the iPod it goes from the "Do Not Disconnect" screen to the main menu. My computer recognizes that iPod is attached, and running the Diagnostic shows its connected, but for some reason I can't get iTunes to communicate with my iPod without first disconnecting the iPod and reconnecting, to which it goes through the normal syncing again and then disconnects. It would do this for a while then give me the following error
unknown error [-50]
I logged onto apple and found an article that I thought would fix my problems. I have done everything that was mentioned in the article except the registry updates but none of the solutions have worked.
It seems that this issue has been discussed for the last 2 months or more and I was wondering if there was a solution.
I cannot use iTune 6 since the nano does work with it and I cannot use 7 since my ipod does not work.
Is there any new ideas on how to fix this problem.

Answer 1

Ended up moving the whole iTunes library and plists to another folder and starting iTunes, then copying the iTunes music library and xml back into the folder to replace the newly created ones. Seems to be working and the play counts/playlists are intact. In case anyone else happens to have a similar error...