When I start the system with the iPod connected,
the lights flash the color orange as if the battery is being charged,
but itunes does't show the ipod icon.
When I start the system and then connect the ipod, this orange light flashes three times and dies.
> I've tried reinstalling itunes.
It worked at first, but then the problem returned.
> I've reseted the ipod and not solved.
Have you tried the other troubleshooting suggestions in this Apple support document?
iPod not recognized in iTunes and Mac desktop
Does the iPod show up in System Profile -> USB? You can find this application in your Utilities folder.
Retrieving data ...