I don't know how the settings were changed; my young daughter may have done it. Also, I just got the new update this morning. I have to touch, then double tap every time. Also, there is a yellow line ...
When I first turned on my Galaxy Tab 10.1, I told it to automatically set the time. Unfortunately now the time zone is set to GMT+00:00 in the Date & time settings, and is disabled (so I can't ...