Originally Posted by motfis
I just have it for 1 month. This is stock JB (not yet KK) without rooting.
I just change the launcher. That's all...
Interesting, you haven't rooted and running 4.3, remove your launcher and work backwards. I had an issue with an earlier version of Next launcher and changed the revision and solved a rotate issue. I would start there and work my way back. If removing the launcher resolves the issue, try another and or upgrade the version you are currently running.
You could also wipe the tablet but you will lose data, start small and work up to the more drastic things. In the period after the launcher did the issues begin? What other apps have you installed in the same period, remove one by one and see if there any conflict there.
Sometimes older software can cause issues, I would definitely start there, let me know how you go.