I use the auto-hide feature for my taskbar on my dual-monitor Windows machine (specs below), but for some reason in Illustrator ONLY, I have to click out of Illustrator to access my taskbar. This does not happen in Ps, Ae or Pr
So, if I'm working in Illustrator I have my main panel on my left monitor and my panes on the right. I have to click on my desktop below my panes to access my taskbar. (see screen shot)

Windows 7 Professional SP1
Intel Xeon CPU E5-2650 v4 @ 2.20GHz
32GB ram