Comment 15 for bug 16428

(In reply to comment #14)
> I have been having the same problem that everyone has reported with the usb
> drives being recognized but not being automounted. I wish someone could document
> exactly what happens with this sub-system, but no matter. My problem occurred
> with Hoary specifically. I found that on user accounts, other then the primary,
> I was experiencing this same problem. What I figured out earlier today is that
> when a new account is created everything looks like it should work properly.
> Subsequent users that are added to the system are not added to the "plugdev"
> group.

This has got nothing to do with this bug. If you create a new user with System
-> Administration -> Users and Groups, you can assign the "Desktop" profile to a
new user which will put him in the "plugdev" group.