David said:
It's a laptop and the issue happens accross the operating system.
Well, first, I don't think that it is an outlook issue if it happens all
throughout the os.
Second, if it is a laptop, I'm going to bet it has a touchpad and the
pressure sensitivity is on. I know I've always had that problem myself.
Try Control Panel - Mouse and see if there's a Tapping tab and, if there is,
play with the settings until it fits your hand. If there isn't, it is
probably a hardware vendor specific control panel entry (maybe labeled
Touchpad) and you'll need to dig out what it would be.