I'm using across with a Blackberry Passport on Windows 10 at 1440x1440. Only Absolute Coordinate Mouse gives any decent results, but whenever I click, the cursor jumps to the top left corner of the screen. When I release the button and move the mouse at all, the cursor jumps back to where it was. Also, whenever I move the mouse off the left edge of the screen (phone is assigned to RIGHT slot, but mouse switching is disabled) the cursor vanishes and I cannot control the phone anymore unless I hit the hotkey to toggle control between the phone and PC a couple times. And finally, I can only ever seem to connect to the phone just after starting my system. If the phone is disconnected for any reason, the only way I can make it work again is by restarting Windows.