I have cross-posted this question here and in the Apple Discussions Forums. Please excuse me if I have posted this in the wrong area. I am brand new to the world of Mac. I will be running MS XP under Parallels on my new MacBook for a few applications that have no Mac alternatives. I have read quite a bit that virus protection is not really necessary using OS X; my question is this: Will running XP on Parallels make my Mac vulnerable to more viruses? If it makes a difference, this computer will be on a network that has both Mac and PC users. Thanks.