/proc can be navigated to as ordinary user -- not as root!?

[Klistvud <quotations@aliceadsl.fr>]

Howdy, fellow Debianites,

I have bumped into a most peculiar situation lately. On my laptop 
(running a fully updated Lenny with Gnome) I can easily navigate into /
proc (both with Nautilus and Gnome-Commander). When I try to run these 
browsers with gksu or su, however, they never let me into /proc -- if I 
try to enter there, they just stop responding. Ideas, anyone?

-- 
Regards,

Klistvud
Certifiable Loonix User #481801