I usually purchase a lot of singles from iTunes and always use my affiliate link. I have made 5 different purchases for relatively small amounts. Only 1 out of five of them actually showed up as a sale.

I am thinking it has something to do with the iTunes application either not loading or not found correctly? I say that because sometimes when I click on a my affiliate link, it results in a launching of the iTunes app and other times I get an error that says something like, "iTunes not found" or something similar.

Probably just me and my setup?