Hello hpryder....hope you won't have our misfortune but be prepared because it will come.
FYI and others pulling their hair out with this cut & Paste issue,...SG3 is an unlocked GT-i9300. Worked fine for 8 months on ICS. Upgraded to Jelly Bean and that may be what caused the problem.
None of the solutions have worked so far. Even re-installed the O/S (not factory re-set)...same, same. What a clever way of spending 500 British Pounds!
20+ years with Nokia.. then let down with Lumia 900's useless O/S! Got rid.
Maybe one day, they can come up with something as good or better than the dodgy Samsung Galaxy III! and best not mention i-Sheep5.