Non-admin problem of reading mounted images

[pierre13]

Operating System: win xp sp1
Burning Software: Nero
Anti-virus Software: AntiVir
DAEMON Tools Version: 3.47

I can under non-admin (neither users group, nor power-users group) user not access the mounted images. While i can mount, and eject them.
It worked perfectly well on a w2k system?

I don't know where to set the permissions?

Please help