Thanks C_C
I didn't see anything in Device Manger that looked like it might apply to the cable. I downloaded the ME driver, installed it, and it did not work. I uninstalled it.
The only things I've found on the internet about getting the 712C to work with the USB cable, were people using Vista64, who decided to go back to Vista32. I don't want to go back to 32-bit. Besides, my disc only has Win7-64 on it. It might be the cable itself. Some people say different cables work with different printers.
I'll have to decide if I want to get an expansion card with parallel connection or a new printer. But, if anyone has any brain storms, let me know.
I only have one ethernet port on my PC, and my modem is plugged into that.
Thanks for the help folks,
Harry