Arrow expand-compress in the main menu not appearing
				
				
                
                    
                    
                
                
                    
						
                
                
                    Hello, 
since the very beginning after installation, the expand-compress arrows in the first button of the main menu never appeared. I have tried to fix the issue, but with no success. Please, I need your help. I have no idea what is causing the problem.
Best regards, 
Sandra