Have a Toshiba Satellite (P755). OS is Win 10. Synaptics touchpad works for moving pointer around, and left and right buttons work, but scrolling doesn't. Settings have multi-finger scrolling enabled. Have tried unchecking multi-finger AND single-finger (in the border areas) scrolling, then re-enabling both. Does not fix the problem. Any suggestions? 

I feel like an idiot! I apologize for adding a junk thread to this forum. There is NOTHING wrong with my touchpad. I rarely use the touchpad/have a small mouse that I use 99% of the time. I was accustomed to older touchpads where you ran your finger from top to bottom of the touchpad to get what was on screen to do the same (i.e., scroll down). Since the advent of touch screens, Synaptics has reversed the direction; i.e., you move your finger from bottom to top to move the material on screen up (which is actually scrolling DOWN).

Sorry!