I tested the newer version, and I cannot figure out how to change the power and direction on a touchscreen (I do not have my pc on right now), it seems to go to 0, 0 (relative to the viewport) with 100 power, the scrolling works fine now
Hi Aphrodite
try it this way:
tap the screen the direction you want to put - the greater the distance to the ball the more power you use (I've change the control this way. It's easier on tablets i think).
to scroll the playground wipe on the screen (scrolling as usual)
(it works on my tablet/smartphone - if not on yours would you tell me your type of device? )