Sometimes, closing a window by double-clicking the upper left icon of a window works, and sometimes it doesn't. I think I've figured this bug out. If I'm in Firefox for a while (just an example), and I go to double click the left corner icon at the top of the screen, it should close (but it doesn't always). If I was in a separate window and came back to Firefox, or if I minimized/maximized/changed the window position, it will always work. I've tried this on folders and other programs, so it isn't just firefox. Does anyone know how to find a fix for this? It works perfectly in windows with windowblinds unloaded, but not always if windowblinds is open and running. any help? any workarounds? any fixes? thanks