It's not unusual for software or equipment from different places to not play nice together and not have instructions adequate to get a non-tech-geek through the process. I just went through a headache with my wireless network. It stopped working, I took all the hardware to my ISP (good thing I deal with a mom-and-pop local one where I can get one-on-one tech support), router and wireless thingey both bad (odd, but whatever). Bought a new combined router/wireless gizmo (one less box and cable to get wrong) and had them set it up, but I was on my own for getting my wireless printer to work with it ... and THAT was a headache. Still don't know if the new gizmo will work with the old desktop computer (which is Windows XP) but the old computer is more-or-less non-essential anyhow.
I only know enough about computers to type at them.
Where I used to work, there was only one way I knew how to fix anything computer related ... pick up the phone, 3 3 7, "get over here, it's broken".
Bad thing about being quasi-self-employed is that there's no IT guy to fix stuff any more. If there was, I'd just tell him to fix this, and the problem would magically go away.