Hello guys! I am new in this forum and I am here to learn a lot of things about kali linux and linux in general

I recently dual boot windows 8 with kali linux rolling edition in my laptop. As I see it has some extra features than the older edition. One "not so good" feature for me is that "hot corner",if I am saying it right. I didn't find anything about those "hot corners" in kali linux but only for ubuntu...
When you move your mouse cursor to the left corner of the screen everything "zooms out" and you can browse between the open tabs-windows in kali.
How the heck could I disable it?
What's more one other extra feature is that the taskbar in the left side of the screen is not appearing when you have open windows but when you move the cursor to this side it appears again,it also doesn't suits me :P So I want to disable it as well...

Thanks in advance