OMD after two weeks

Well, I've had my OMD for two weeks now and I'm just about getting used to it.  I've been using a GF1 for the past couple of years so my muscle memory needs re-aligning!  One problem I've had is that the Fn1 button, which I've assigned to 'magnify' often doesn't work and I have to go into the menu, where it is definitely correctly assigned, and come out agin - and then it works!  Anyone else had this?  I've included a few photos here taken with the OMD and I'd be very pleased for any constructive criticism.