Hi all. Just got my hands on a Nikon A today, love the GR and have no plans move it on just yet, but, I have become increasingly frustrated by the way the camera simply does not respect my ISO limits that I've set up for shooting street....in EVERY other shooting scenario the camera is a dream I must add. There is a workaround of sorts that will stop me hitting crazy high ISOs like 25,000 but even the workaround leaves me frequently hitting ISO values around the 10,000 mark, simply way to high for my liking....as brilliant as the GR sensor is, it 'aint no A7s ! I have always been keenly jealous of the way the Nikon A can be set up in this regard with a 'hard' ISO limit and a 'soft' minimum shutter speed....MUCH prefer this method. So today I've set the camera up with a few key settings and I really was pretty darn pleased when I was able to set a hard ISO limit and soft SS limit in the knowledge that under no circumstances was the camera going to breach ISO6400 and it would instead slowly chip away at my 1/400 min SS instead...happy days ...so that was custom user setting one (U1) done and I then went on to set U2 to a max of ISO1600 and min SS of 1/50 ...again, happy days. So I get out of the menus and go into shooting mode in the yard outside to see how it all goes...so I switched out of A mode and into U1 and togged back and forth to U2 on the mode dial and I notched the mode icon in the top left of the rear screen display either "P-u1" or "P-u2"...all good. Then I tried turning the top dial that controls aperture in A mode to only to find no response, the aperture remains unchanged at f2.8, no matter which way I turn...and no dial or switch or ring or anything gives me control whatsoever....the exception being that I can still control exp. comp in the regular way. At this point my anxiety levels shoot through the roof and i'm feeling minor heart palpitations! I went through the manual again, I went through my settings again and tried googling the issue....but all to no avail. When I'm in either U1 or U2 the shooting mode icon on the screen is a 'P' and the second I turn the aperture control dial the icon displays an asterisk next to it (P*) until I return the aperture control dial back into what I can assume is some kind of zero position. The only thing I can think of is that in both custom 'U' modes the aperture is locked in permanently at f2.8 and that the aperture control dial is 'dead' in these modes........or.......I've stuffed something up somewhere ! The difficulty with finding answers on the internet with regards to the Nikon A is that typing in "nikon coolpix a" into google shows up about a bazillion item relating to any of the countless 'coolpix' models and not specifically the 'A'. I'm sure the camera is fine, so what have I missed ? Can any of you A shooters (or Nikon shooters in general perhaps) shed any light on this for me ?