I have had exactly the same problem this morning - I have pasted below from console 23/11/2014 18:41:04.034 iCompta: kCGErrorIllegalArgument: CGSGetDisplayBounds: Invalid display 0x04272800 23/11/2014 18:41:04.034 iCompta: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as ...