Can I re-install iTunes from the internet after uninstalling it? (Due to iPod Classic Problems)?

Hey guys.

My ipod classic has been screwing up and the itunes support site said to re-install itunes. All my music is backed up, so dw about any of that crap.

When I re-install iTunes, I can just do it from the net, right?

If you've experienced similar problems with your iPod classic (mine being when I plug it in it freezes up my computer, tells me to restore my iPod to its factory settings and when I do that, it just freezes again), can you tell me what you did to fix it?

Thanks! Much appreciated