Vista 32-bit Host connected direct to an HP printer - works fine. Win7 64-bit laptop connected direct to same HP printer - works fine. Win7 64-bit laptop printing via Vista 32-bit host - no go. I've tried installing the 64-bit driver on the 32-bit Vista machine. I've also tried installing the 32-bit driver on the Win7 laptop. In both cases, Windows and the HP website give me the runaround and insure me that all necessary drivers will auto-install via Plug-n-Pray. But this is not the case. Unable to find driver downloads easily. How do I solve this printing riddle?