I installed Ubuntu 13.04 but an annoying error has been bothering me. I formatted my PC to get rid of it, but about 2 hours after the fresh install, it came back.
The thing is that the title bar of any window, at the upper-left side, where the "close, minimize and maximize" buttons are, disappears when the mouse cursor is set over them. This disables the possibility of using them when the windows is maximized (full screen) but not when it's not. But it is very annoying.
The second screenshot may help show what I'm trying to say (notice the cursor and what happens when I try to click the close button on any window)
This is the problem:
I'm aware that there is a similar question answered on this site, but the thing is that the solution in that post involves using Unity2D, which was removed in Ubuntu 13.04
I hope there's a way to fix it.