This problem has gotten worse in the last week, I've lost so many lives and it's really frustrating. Now I've figured out it's nothing to do with my mouse, it also happens on my touch pad. I don't get it, is it me or the game? Sometimes I carefully swipe which ever direction I want them to go and I can clearly see them…
Unfortunately, the problem persists. Luckily not as badly, as it did, when I wrote this post, but every now and again I swipe them from right to left, and they go up-down instead or I swipe them downward and they go sideways. Major loss of interest in the game after this anomaly started.
Thanks Joseph. Although, it's not the gravity. But I think I figured it out, it might be low battery on my mouse. I'll change the battery and see if it fixes it. :)