I am trying to get several PC's on a network to connect to my client's new wireless printer, the C4783. I initially installed the whole HP 'tsumami of software' the comes with the printer onto my laptop, connected to the printer over USB, and corrected it's networking config. My laptop now also can connect to and print on the printer over the wireless network, as is intended for all PC's.

However, when I try and install the HP software on my client's netbook, the HP software cannot find the printer. Firewall was turned off during this time, so doesn't play a role. I tried re-installing all software, but I initially only got a "Repair" or "Uninstall". Choosing Uninstall triggers a lengthy process that ends with a sudden and forceful restart, after which the same "Repair" or "Uninstall" choices are present. Looks like uninstall doesn't.

Any suggestions as to how I can begin diagnosing why my laptop has no problem connecting to the printer, but two others do? Wireless is unsecured, and no, nobody has to know where I am right now. :-)