iPod 120gb isn't recognized by computer and keeps resetting itself
I have a iPod Classic 120gb and it has been playing up for nearly a year now so I gave up on it. The other day I got it out and started to try and fix it again, but still haven't had any luck. It constantly restarts itself and only occasionaly tells me to conect it cause it needs to be restored on itunes, however when I plug it my computer doesn't recognise it (or if it does and I try to restore I get an error message (1933 i think)). I have even tried to use Disk Utilities and it can never finish reformating or erasing my ipod.
Strangely my iPod often seems to think it is in Disk Mode also, and I have no idea why. I have searched online but haven't found andy help and I have looked on many sites but none of the standard tricks seem to work, i.e. the 5R's.
Anyone had trouble like this in the past?
NEED HELP URGENTLY!
iPod classic (120 GB)