As a teacher, I present to a projector from my laptop and walk around with a mouse. In order to change slides, you have to use the scroll wheel, and if your card is short, you have to scroll 4 or 5 times before you card changes. Click the mouse has no effect; while clicking the arrow on the keyboard his works, and directing the mouse to the card tabs on the bottom of the presentation works, this is prohibits movement, or I have to stop and move the mouse precisely.

Recommended fixes are to allow the card to advance on a click of the mouse or if you have already scrolled to the end of the card, the next scroll should bring up the next card. Instead the white circle with the blue wheel shows up as a scroll needlessly.