I am having some really annoying glitches with Task Manager. Some times when I click on a window via task manager that is either minimized or beneath another window, I need to do multiple clicks for the window to appear. This seems to happen with things randomly, when the system is not under any sort of load. Another issue that I have is that some times when I open a few windows, there is a blank space in task manager as if there was a window there, but there is none.

These things are really annoying and I was hoping that someone here knew how to fix them.

Edit: If it helps, I think that the issue with windows not appearing is linked to the motion of my mouse, because it seems that when I move my mouse to the task manager to open a window that is minimized/closed as I stop moving it, the window fails to appear, but on subsequent clicks, my mouse has been stopped for a while, so it works.