RTS-300 Mouse Mode tend goes to top left
Hi, last month, or maybe a month before it, i just bought Huion RTS-300 and i just realized that when i use it on Mouse Mode, the pointer tend to slowly goes to the top left side of the screen when i move it. It's not jumping suddenly but slowly and only when i move it. But it works just fine when the mouse mode is off.On the picture above you could see that A is when i use mouse mode and draw a straight line back and forth. I even use a ruler to make sure it's straight. And then B is the same thing but without mouse mode.
Any idea why this happen or how to fix it? I already try to reinstall the driver but it's not change at all.
Thanks in advance