Icons On Taskbar At The Bottom Of Screen Become Distorted

The icons on the taskbar at the bottom of my screen become distorted. They'll generate copies of themselves, overlap other icons, and the start menu button disappears. Whenever I try to click an icon, it opens the icon to its left, as if the mouse needs to be calibrated. When I open the start menu, every time I scroll my mouse across a shortcut, it disappears. Poof. Just like that. I scroll my mouse over the icons a few more times, and usually, they'll come back, but if I scroll again, they disappear once more. Thus, I'm not able to open any programs from the start menu. Additionally, my background (which I normally have cycling through a folder of wallpapers) goes completely black.

This happens without warning; sometimes I'm playing video games and it happens when I alt-tab, sometimes I'm browsing the internet and it happens randomly, once I was just looking at my screen without running any programs or tasks and it happened. It will fix itself anywhere from a span of 2 minutes to half an hour.