Thanks to the guide at Lifehacker, I have set up my mac to access files from my pc machine. Files transfer fine. But right now I can't transfer some files because it says I don't have permissions on it. I configured my mb and my sister's mb to share files, because I got tired of using my iPod to transfer downloaded videos to her mb. Some files open up fine, but there are some that she doesn't have permissions enough to open it. So she has to everytime, click Get Info, add herself to the permissions. How do I fix this so that every file, both in my pc and my sister's mb, will be read by anyone without going to the hassle of Get Info and adding oneself to the permissions?