Zoom and Hand tool

I recently download the Mac version but the Zoom and Hand tool do not work the same like it does on windows. When I use the mouse wheel it will just move the page up and down instead of zooming in. And the mouse wheel click does not activate the hand tool to drag. I found out I have to hold down the wheel clicker then try and zoom in. Could someone please help me get this resolved? Its driving me crazy where I will not even use my MAC and go back to my old windows computer. Inkscape and AI work the same on both MAC and Windows. Thanks in advanced.

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