When I try printing something from my MacBook (OS 10.5.5) to my USB HP Deskjet D2360 printer, I get a message: /usr/libexec/cups/backend/usb failed I found the file (it's a Unix Executable File) and when I open it in Terminal I get "Bus error". I found the same file on another computer and when opened, it does not come up with the error and that computer prints fine to a USB printer. I can still print from my MacBook to a network printer and my USB ports work fine with other devices. Anybody else with this? What can I do?