PeterPumpkinEater wrote:
It seems to me that particular configurations and how different people happen to use their iPads must be a major factor in regard to who encounters what problems.
This is exactly the case. In a mass-produced device, all those (of a similar kind, like iPad 2) come out exactly the same way from the factory. AND ... all those off the factory floor are going to operate exactly the same way with iOS 8.1. That's not an opinion ... but an ABSOLUTE FACT. Everyone has to start from that position. So, when one encounters various problems, and finds that one solution works and another doesn't and not everyone's problems are the same, you are led to the UNDENIABLE CONCLUSION that the "variation" is all inside that one user's machine.
Now, that "variation" can be something like a scrambled file, which could have resulted from a glitch in the installation process. Perhaps a user decided to cut off the installation process in the middle of it, because it appeared to be stuck, and they cut it off at a point that damaged an existing file. That's a plausible outcome. Or there were already existing files, before the installation began, that were scrambled and they couldn't be corrected in the installation process. Or there could be a hardware glitch or failure. Or, as we've seen already, there could be an app that is not compatible with iOS 8, and it's severely interfering with the operation. Or there could be a number of other things, all not having to do with iOS 8 - "itself". Those are the "variations" that can be existent in all these people's iPad 2 devices, which cause a number of "different solutions" to work for them.
Again, the starting point has to do the absolute acknowledgment of those first three sentences up above. You start with that, and you proceed from there. And "that" is why one can restore to factory default in a clean system install and get back to "those first three sentences" up above. And when someone doesn't get back there, that doesn't invalidate those first three sentences up above (in my comment here), but it means that there is another "variation" inside "that device" that one doesn't know about yet.
If someone doesn't believe those first three sentences up above, I would like a really good explanation as to why ... :-) ...