Originally Posted by martani

yes now it's working for me,
I found that it never downloads when I'm connected to public wifis, so when I connect to protected networks with password there are two cases :

1. it starts downloading immediately
2. it doesn't : in that case you choose the application you want to download, hit start download, then disable and enable wifi again and it will start immediately.

some other start Google Talk and that worked for them
I hope this will work for you!