Fighting my Taskbar Help!

[Valkyriewild]

I play in fullscreen windows mode and until recently this was never a issue but let me try and explain. As you know when you bring the mouse down towards you, it changes the camera view in game to the top looking down which is fine but for some reason it now pops up my task bar which is very annoying when your trying to fight and change your camera view around and you start clicking on your taskbar which can result in either opening programs you have running or shrinking down the game, i want to fix it so you actually have to hit the windows key to pop up the taskbar, i have try'd rebooting and reinstalling and going to full screen and back, nothing is working.