I have an ASUS G75VW laptop with a Synaptic touchpad (/trackpad). When I move my finger from one edge towards the middle (the swipe), Windows 8 will bring up different stuff.

This is a problem because the area where I can actually move the mouse with my finger is too small (or, I mostly use the top left of the touchpad). So I often end up doing a swipe and bringing up some menu, or to do the swipe so slow that no menu is appearing but the mouse pointer is also not moving when I move my finger. Quite annoying.

When swiping from left edge it earlier swapped apps like crazy. I disabled that, so now it only brings up the same menu as pressing win+tab (or some times the charms bar, I never know which). I could change that by:
Win+I -> Change PC settings -> General -> When I swipe from the left edge, switch directly to my most recent app

I've tried Mouse settings in Control Panel, driver settings for my touchpad and searching for swipe and gestures on my computer (which was what led me to the setting above) with no luck.

How can I disable the swipe gestures, or change what they do?
Thanks.