Thank you guys for the replies,
Upon reading my head message, I realize I should have written more details, my apologies.
The blind-spots correspond to the device not responding to the stylus; It is
not the issue of text not appearing on the screen.
This sometimes goes away after a reboot but sometimes it does not. The irritating thing is that you never know when this will happen and can be quite annoying when deeply involved in some work, and not being able to calculate how to avoid the spots, since they are not always in the same location.
So I was hoping for a fix-it-once kind of resolution, since if a malfunction such as this is a given for the device, I am shocked.
Here is a video of the current situation, which is relatively small compared to other days:
https://www.dropbox.com/s/y2oewe21gs...85707.mp4?dl=0