UPDATE: The manual mode switching worked for me for about a day. Apparently whatever was corrupt is corrupt again, because I can no longer zoom. There was probably a reboot in there somewhere, but no messing with mappings between the time it worked and didn't. The "Z" key does still work for a fixed zoom percentage in some GVs, and the bracket keys still work for zooming in and out on an external view of a bomber for instance (and to zoom back from the gun mount when in a ship gun), but once again, no zooming in on a distant shore or sea target.
I see nothing hinky in the mappings. For that matter, I didn't see anything that had changed when it did work besides unchecking auto mode switching.
I am still fascinated about the "do you have Win7" question. Is there an OS related answer lurking out there?
The only things that could be considered "fancy" about my system are that I run dual 1920x1080 25" monitors with AH on monitor 1, and I have another controller Besides the Saitek Z52 in the form of a Belkin Nostromo N52 which shows on the controller setup list but isn't mapped to any functions...I don't use it in AH. I don't see as it would matter, but the mouse is a Razer Naga Elite. Both the Nostromo and Naga have resident mapping software running configurations, but neither get mapped in AH for anything aside from the usual mouse axis stuff. Unplugged the Nostromo, no change. I do not have the Saitek configuration software running any profile because it causes me to lose the pinky switch mapping for view modification.
OS is Win7 Home Premium 64-bit.
I guess I'm staying out of 8" turrets till I get to the bottom of this.