Xencelabs Technologies Ltd.

It's been going on for a while and I've learned to live with it but out of the blue on irregular intervals and at least twice a week my Xencelabs medium pen tablet seems to have a live of its own by frantically moving the crosshair, pointer or brush (depending in what program I am) and activating menu's or opening and closing things as if it's randomly controlled by someone else. It takes maybe just 2-5 seconds, the process is like a fast forward motion and when I remove my hand that holds the pen of the surface of the tablet it just keeps going. After that, unnecessary windows are open, commands that I do not want to be activated are activated, the program I use has been minimized or the window shifted that it's half on the screen and now just before I post this the program I was using just closed without saving the work I was busy on (a 3D model). I lost a 3 hours of generating content whereby I thought to address the issue now. In the past I have been able to get back to the normal state just before a 'burst' happened by pressing ctrl-z (in Photoshop whereby random paint strokes or lines where appearing) but it's not always been possible.

The tablet and pen work fine for the rest but these 'bursts' are quite annoying especially when work is lost. I tried to record my screen in the past at irregular intervals but have not been able to record such a 'burst'.

Any advise or any one else that has experienced this?     

That's crazy. I've had the exact same thing from the beginning of owning this tablet. I figured it would just be me. When it starts, even when I put the pen away from the tablet, it just goes and goes causing all kinds of havoc on what I have open at the time. Unfortunately it's completely random, and I'm unable to make it happen to get the evidence so to speak. It might be a few times in one day, or it might go weeks without it happening.