Pen does not write properly
Hello, Recently, I noticed that when I write at normal speed, some "segments" of the writing are not written. On this picture (https://www.dropbox.com/s/8es6k79oiies2er/Pb ActivPen.png?dl=0), I wrote twice the same phrase. The line above is written at normal speed, while the line below is written very slowly. It seems that updating my computer (a MacBook Pro) to macOS Sierra caused the problem. I updated the drivers and the version of ActivInspire but the problem remains. Would you please have any other suggestions?