i Have a brand new Mac book pro laptop. i have installed a program called parallels that allows me to run XP as a window inside of OSX. the problem is that i have very little space for my XP partition, so i bought an external HDD (500 gb) to compensate. but XP cant detect it. i get an error message that tells me that the device i am trying to connect is being used in another process. disconnect blah blah blah. ive done all that. i have no idea. any suggestions?