Incidentally, not all registry tweaks have apparently been affected.
I was able to perform the following tweaks that stuck:
- Getting rid of HTC Notification manager on top taskbar, replacing with standard 6.5 notifications
- Small task manager
- Remove Locked HTC Start Menu / Programs tab Items
- Opera (and ActiveSync) in Task Manager
In addition to these tweaks which I did manually myself, several others for which I have .cabs also worked fine, including replacing the 6.5 Start Menu/putting the HTC Start Menu in tabs...
Anyway, you guys get the point. This registry issue seems to be targeting only a few particular settings and isn't global. To me, that's even more puzzling. Most users don't tweak these and all Vzw has to do is to tell its users that do that they're on their own unless they do a hard reset. But I guess each call costs them a little bit.