I have a Windows PC (w/ Vista Home Premium) and a new 15" MacBook Pro. Just bought the new Airport Extreme Wireless Base Station. Installed Airport software on the PC. Works great. Macbook works great for surfing the internet on both. I have a WD 120GB Passport USB hard drive I want to share on the base station. I know it is designed for this. Here is the problem: I plug the USB hard drive in the base station and it starts flashing yellow. If I check Airport with my PC or Mac it says there is a drive error. The Hard drive is formatted for NTFS. I think a base station can not read a NTFS format correct??? If not and I have to format the drive for a MAc as NFS Journaled than how is the PC going to be able to read it??? Is it possible for a Mac AND a PC to share files off of the drive??? I called Apple tech support and the guy I spoke to had no idea about drive formats at all. He was worthless. Apple advertises this base station for a Mac AND a PC. If I plug the drive into the Mac or PC it works great of course. You just have to copy files to the Mac as a Mac can not write to a NTFS drive. Easily done. What do I need to do to make it work??? Thanks, Norman Ross Jr.