For some reason, sometimes when I boot into Windows 7 in Boot Camp, the System Tray will be empty. So when I try to restart via the Start Menu, nothing happens. I have to manually shut down power, then boot into Mac (if I try booting into Windows, then I am stuck in the grey screen).
After booting into Mac, then I boot back into Windows, where it gives me the "Windows shut down incorrectly last time, do you want to boot into Safe Mode or boot normally?" question.
Anyone know why this could be happening?