Originally Posted by annebrooks64
A factory reset won't put you back to ICS at all it just means you wipe and reset your phone and reboot it. You will lose all your data unless you back it up but it often clears up bugs on the phone. The only way to get back to ICS is to root. However all the bugs you've found are well documented problems with 4.2 and its been posted all round that a 4.2.1 update is rolling out to nexus devices which will likely fix these bugs.
Cool...I will just wait patiently for the bug fix........hopefully it comes soon. Thanks very much for the info.