I'm so frustrated right now, my Huion 580 tablet won't work. I am on a Mac OS X and I followed the installer instructions. I restarted the computer then plugged it in. A green light flashed and the Keyboard setup popped up. I clicked out of it since I waited for 10 minutes when I pressed 1 key. Now I can't seem to re-install it the way I first did it. I even put AAA batteries in the pen, I have no idea what's causing it to not work.