Just took my new EP-3 out for a walk and all was going great until.... ....the camera decided that at certain points it would not register my use of some buttons; which appeared locked out. So, for example, while in A-mode no manner of turning the wheel would affect aperture settings, Fn buttons (e.g., EV comp, etc.) and 4 way buttons didn't work either. The camera would continue to AF and even take photos, meter and ISO changes, etc., but all manual adjustment settings appeared to be disabled. I turned it off and on again and it worked for a short time and would relapse into nil controls. The only thing I did notice is that when I lost manual controls I also lost the metering icon (the one which indicates if you are in spot, centre-weighted, ESP, etc.). Whenever the icon appeared again (middle to top left of the screen) then manual button functions seemed restored. Might be a common problem that is remedied with a simple menu setting change, but it has me baffled. Help would be greatly appreciated.