Try restarting your computer if you didn't do it after installing Activesync the first time.
I had a very similar issue after my A04 ROM upgrade and restarting the computer after creating a new partnership sped things up.
Another thing to try is to open Activesync, click on option then rules and let the files on your device replace the files on your computer. How you have 15 files to sync with a brand new Ax I don't understand.