i did a fresh reinstall of slackware 12.2 on my testing machine. installed all updates, nvidia drivers and my SlackPack (couple of packages like games, codecs etc.
with adduser i made an user with all groups that you mention in your post. then i edit fstab like you told me.
When the drive isnt mounted, i can access the /mnt folder.
When the drive is mounted, i cant access the /mnt folder.
As soon as i mount the USB drive, every Folder, even when i create a new one as a normal user and use it in fstab to mount the drive into it, it becomes unaccessable. the small lock appears at the folder
. With the root account i can access the folder. I really dont know what else i can do......