This problem has been widely reported, and I'm posting here to give it a bump (and to say that it's still out there). Running the latest version of Spotify on a MBP 10.8.2. Was working fine, then out of the blue, stopped working. I start the app, login, and the app freezes (I get the "not responding" message and have to Force Quit).
I had this problem a while back, and after a couple of clean reinstalls and logging into the website first, it worked fine. Now, nothing seems to work. I've tried:
Nothing seems to work.
Web player works fine, iPhone and iPad work fine. Just the standalone client.
Any ideas out there?