menubar

Please help! I've found very few threads that mention this, and following them has not helped! I am missing icons in the menubar, including the apple and wifi icons. I am also missing items in the sidebar, and buttons from both finder and safari. The pics show what I'm talking about. I...

In Yosemite m having issue at menu bar's time and date area only. It keeps flickering. It is fine for 1sec then again disappear. Please help me .....

The problem is that I Can't select Hard Drive to install because I can't access Disk Utility. The whole top menu bar seems to be frozen, nothing works except Language in the top right.