Indefinite "wait" state installing HP connectivity kit

[rkf]

Thanks to all who helpfully responded! In the between, I switched to another desktop computer with identical hardware, and almost the same software- and patchlevel, and there weren't any problems with installing or updating the HP software. So I deduce that I have a somewhat hidden problem with the installed software base on my first desktop, but since I have a workaround, and no time at the moment to dig further into this mess, I stop the search for a solution at least for now.