PC not showing up in "My Computers" using auto discovery

PC not showing up in "My Computers" using auto discovery

Am I missing something? I have the latest companion on my desktop, logged in to google account, and when I sign in with the app it tells me "any computers that have pocket cloud companion will be listed under my computers."

Well there is nothing listed there, it just shows the basic sign in page, prompting me to sign in again. I feel like this should be pretty simple, I must be doing something wrong. Please help!

Windows 7 32 bit
Droid X