Task bar is set to auto hide and is at the bottom of the screen. Everything works Ok until computer goes into sleep mode and when I wake it up the task bar will not reappear until I either reboot or open task manager and restart Windows Explorer. Everything then works until the computer next goes into sleep mode when I have to repeat the process. However, if I move the task bar to the left side of the screen it keeps working after being in sleep mode. I don't have to reboot or restart Windows Explorer like I do if it is at the bottom of the screen. I have no idea what is going on and even less of an idea on where to begin to trouble shoot or correct the issue. It's quite an annoyance to have to restart Windows Explorer and it is also an annoyance trying to keep the task bar on the left of the screen since I had it placed at the bottom for so many years. Desparate for ideas or a solution.