I have the following problem I have an iomega external hardrive with 750GB. its an usb drive. so far it has always worked fine on my laptop. but now i am visiting my paraents place and have been trying to use it on my dad's pc. the problem is that it will recognise the virtual drive part od it but not the data part of it which means i can#t access any of my stored data. any ideas why that could be?