I'm having an odd issue with the Vista Ultimate Edition's backup utility.I set up my backup location as a Windows XP Media Center Edition PC, and while I can copy files to the location one at a time, and Windows Live OneCare backs up to that location, and even the Easytransfer utility backed up to that location without a problem, the built in Vista backup utility just won't back up to that location. After I browse to the location it asks for a Username and password to access it (There are no passwords set up for that machine, but Vista won't let me continue without typing one in)Then, if I'm backing up to a new folder it'll start the backup and then say the location can't be found.If I back up to a folder I've tried before on that machine, it says "Access is denied."Has anyone experienced issues similar to this? Is there a way around it?

I have exactly the same backup problem with a Maxtor Shared Storage Plus

A little more info...Every time I try a new folder, before erroring out the program creates a file called MediaID.bin in the folder it backs up to.Once that file is there, whenever I try the backup again it says "Access is Denied"