I recently reformatted my hardrive and re-installed my os (10.8.2) as well as my copy of D3 through the battle.net downloadable client. The game worked fine before but now hangs on the 'Downloading Additional Content' screen that comes up on startup, after log in, and then indefinitely when I 'resume game' with one of my characters.

Per a Blizzard moderator's suggestion on one of the several posts under this heading I deleted the battle.net folder under users>shared>battle.net and restarted. Opening the launcher now has lead to the entire game being re-downloaded.

I have been able to find very little support on this topic. What's the solution please Blizzard?