Erratic app behaviour ( apps open and close randomly)

[vansjohann_gmai]

I have a Xperia tablet Z SGP321with updated firmware to Android 4.2.2. I have been experiencing aps opening and closing automatically.

It seems as if the tablet is sensing false touches. I am using my tablet under normal working conditions, not under stress as some other posts record. Please help

[dnastase]

Check this forum, there are similar threads. No solutions though.