I have a similar issue to other threads: unable to mount a USB hard drive (formatted as NTFS) as non-root. It appears on the file system browser OK, but when I try to open it:
"You Do Not Have the permissions necessary to view the contents of "Backup""
I've tried editing the fstab (/dev/sda1 umount=0222, users etc etc) and removing the line altogether to allow HAL/gnome-mount to do their thing. I even tried hacking the HAL conf and policies according to several threads. The frustrating thing is, it has worked and mounted OK, but intermittently - and I'm not sure what the deal is. I do use the sdrive in XP, so perhaps using it there renders it somehow 'different' when I next boot into Fedora?
PITA, and frustrating, and I'm hoping the frequently mentioned issue of permissions with respect to NTFS USB drives is sorted soon.
(ps: using latest Core, 2122)