You can adjust how your touchpad pointing device moves and scrolls using Logitech SetPoint mouse and keyboard software.
NOTE: If you don't already have SetPoint installed, you can download it. See answer 360023356473 for instructions.
To adjust the settings of your touchpad's pointer (or cursor):
Launch the Logitech SetPoint mouse and keyboard software.
Start > Programs > Logitech > Mouse and Keyboard > Mouse and Keyboard Settings
Click the My Mouse tab at the top of the SetPoint Settings window.
Select your touchpad from the product drop-down menu at the top left.
Click the cursor icon on the left toolbar to display the Pointer and Scrolling Settings screen.
NOTE: You can click the "?" icon for descriptions of the tasks.
Change the settings to what you want them to be.
Click Apply to save your settings and then OK to exit SetPoint.