Hello! Yesterday, I have downloaded Parallels Desktop to my Macbook Pro, and my brother brought a CD of Windows 7 to install there. At first, in the coherence mode, the taskbar was working amazingly until I turned off my computer. When I turned it back on, Windows 7 started to run, and the taskbar started to disappear and reappear after awhile. Then I restarted Parallels, then the taskbar completely disappeared. I have tried to modify its settings, and it still didn't work. So, I changed the coherence mode to window one, the taskbar was there. And then I changed it back to coherence, it disappeared again. What should I do to get it back in the coherence mode?