Hi dj. I don't know if this is the case for you but often after a major update it takes a factory reset to set things right. It happened to me and has happened to many. I guess it's impossible to write an update that will take everyone's phone and app scenarios into consideration. If all else fails for you in solving your problem, a reset is definitely the ticket. It will factory fresh your phone and then replacing your wanted market apps will marry with the updated OS as you add them... making the phone run faster and more efficient.
Be certain if you follow this path that you back up or save all things precious to you from your phone to PC or cloud etc. A factory reset will remove everything and take the phone back to brand new state. Best of luck...