Apparently enough Diablo III players are experiencing "unexpected errors" following the new version 1.07 patch for the action/RPG sequel that they have become expected. This Blizzard post for users encountering this problem outlines how to access the agent log and DB files to pass along to them to help them resolve this situation.
"The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts." -- Bertrand Russell (I think...)