I spent an hour messing around trying to get HP device manager to communicate with my HP C4380 all in one printer/scanner

It was working before I upgraded to Snow Leopard - I found several articles stating that you can just download the latest drivers and recreate the printer - this did not work for me. turns out the easiest is to not use the HP device manager - and simply use the 'scanner' tab when you list the printers details in apple->system preferences->printers->c4380 tab