Ok unit arrived yesterday. Small booklet. Do I plug the computer cable into the unit,then into the computer. Then insert the disc to get the user manual. Because when I just install the disc a file opens and tells me to just plug the usb cable into the computer. Doesn't say anything else. Trust me I won't be a pain in the a** < just want to make sure I get off on the right foot here. 1st step for me is the manual