On the windows side I have a bootcamp icon I can click on to display which system to boot to. On the iMac side I have to click on system preferences, then the startup disk, then the lock icon, then Windows and tell it to reboot. I know I can hold down the option key but on my Pro it seems to work half the time as its a crapshoot to when to push the button. At least half the time it boots to Mac. Anybody come up with something to make this easier? Its a shame I can do this in windows but Apple makes it so hard.