That's it, I've had enough. The bloody thing is going back to HP.

I tried email support and got nowhere. I tried downloading the latest drivers (373 MD, for bloody pribter drivers) and having another go, and got the same issue as with the shipped drivers. I would have tried phone support, but in addition to being expensive, it's only available during office hours when I'm at work.

So, it's either take a day off on the off chance that HP's support line can fix the problem, or just send it back. What would you do?

By the way, I blame Microsoft more than I do HP. HP's support may be crap, but I'm sure that it's Microsoft's nasty USB support that's the root of the problem.