As always, after installing the new distribution, I switched back to the classic gnome-panel stuff, and now I'm experiencing a strange bug I haven't seen since the ol' Windows days: from time to time, clicking a window in the window list at the edge of the screen fails to switch to the window, as if there was a single pixel row that is not clickable. The behavior is not deterministic, so I can't tell when this is about to happen, but it's quite often and therefore annoying. I can't figure out if this is a bug in Gnome or gnome-panel or something else, I don't even know what to google for.
Does anybody observe the same and can confirm if it's a bug? Or is there a known work-around for this issue?