Q: Need help with HP printer installation.

You may have to connect that printer to each computer by USB to do the install.

Read this.

http://support.apple.com/kb/HT4670

Stupid I know but it's a Mac

Oh well. Good Luck

I noticed when installing printers, either it's super easy, or you're in one for **** of a fight.

Low chance of success here, but since we are getting desperate... try SMC, PRAM, and also re-set printing system. Maybe even make some test accounts...

If you force restart the computer on the freeze up, or force quit the printer adding window, does the printer appear in the print and scan system preference?   In other words, did the printer successfully install?  (is it possible that the setup part of the install failed, but the actual install worked?)

If so, you might be able to set the configurations yourself.

Open up the print and scan system preference.  Double click on the printer.

When the printer queue window opens up, you should be able to click on the printer setup button.

Go through all the tabs and set things up the way you like.

HTH

-Graham