Toshiba Encore WT8-A-103 - Jumping circles/points on the screen

Hi all,
one strange issue that seems to happen quite often with my Toshiba Encore WT8-A-10:
some jumping (mostly filled) circles/points or spots on the display. Firstly, always arranged in a straight line (both holding the tablet in landscapeor portrait mode). Today more than one line was affected.
Once this happened after starting the tablet and those jumping things resulted in keystrokes when I had to enter the password for my outlook.com account. I tried to start Taskmanager when this happened today, but this affect seems to be using quite some processor power, so I could not start Taskmanager. Also, when switching from the Desktop to the Start screen in W8.1, all of the tiles are kind of zoomed out, and I cannot use the touchscreen to scroll around and open programs. Since this was going on for some minutes without getting better, I had to press the power button for some seconds to perform a restart of the tablet.
Anyone else with this strange phenomenon?
Best,
Thomas

Okay, good idea. Just took 4 pictures right after starting the tablet and entering my credentials. Take a look at those dots in about the lower third of the image. Those dots go on and out, appear on other parts of the screen and mess up with the overall performance. Know these fancy xmas lights on a tree, where one goes off, the next goes on, thus simulating a kind of "movement". That's exactly what it is. Best - Thomas

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Toshiba Encore WT8-A-103 - Jumping circles/points on the screen

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