All of a sudden: iTunes can't see my iPod

Today, I plugged my iPod into my computer as I’ve done one hundred times before, to copy Raising Sand from iTunes to iPod - but iTunes acts as if it isn’t there.

It’s iTunes 7 and Windows XP (updated). I can’t see the iPod in Windows either (but I’m not sure I would). The iPod is charging and everything; nothing has changed AFAIK since last time I plugged it. I’ve restarded the software, well the whole machine too.

I tried Google, of course, but the key words involved makes it hard to find useful information.

Apple support document:

iPod missing in “My Computer” or in iTunes for Windows.

That was some state of the art support site. Thank you Walloon, problem solved.