Are there any problems with working on excel and word processing files on the Mac and then on a netbook with Windows 7, and back again? I'm thinking about getting a netbook but don't want to spend a lot of money -- the ones I'm looking at come with Windows 7 Starter, but I'm worried that I'll run into problems (eg. files crashing) if I try to work on and move files between my Mac desktop and a netbook.