...but now, when I try to switch from Mac to Windows, the Windows screen covers my dock so I can't switch back to Mac. I don't know what I did wrong but I'm sure it's an easy fix, but I just can't find it in my Mac instruction book. Any help?? Also, another problem... I use Firefox and want to make both my Mac and Windows the same as far as the tabs go. But, when I try to copy and paste from one to the other, it won't let me do it...Any help here? Thanks in advance!!!