I've been having this problem since I got the program and tablet in 2016 and no one could help me on this.

The problem is that my pen would only produce straight lines. This would happen at random and would also randomly go away. Is there an easy fix?

If anyone is confused, here's a video to help explain my situation:


This isn't a tablet problem. The tablet works fine in my other, more complicated software. But for some reason it doesn't happen with my mouse.

My Artrage is 4.5.10 Lite and my computer is a MacBook Air OS X 10.11.6

Please help!