For some time now, I've been "experimenting" with various printer drivers for our London office setup. Our main print server is 32 bit, but even after attaching 64 bit print drivers, I get a Windows cannot connect to the printer. Operation failed with error 0x0000007e" message when a user on Windows 7 64 bit tries to connect. The funny thing is, I have two users who CAN attach to the printers without any issues using the HP LaserJet P2050 Series PCL6 driver, but one user who can't. All the users are on new Windows 7 machines.