user settings different via VNC than as local user

I’m trying to figure this one out. I have a new install of 10.3 Gnome and I am able to remote logon from my XP box to the Linux box via ssh & VNC (realVNC) - BUT I notice that I can’t mount the DVD drive when I am as user(VNC) but as root(VNC) I can. BUT if I am local - user DVD automount as well as local root has DVD automount.

Strange no?

So why and how or what to configure