[Zope] manage_workspace in doubt

[Edwin Martin]

Hello,

We have a strange problem which only occurs on certain
PC's/browsers.

In the Zope management screen, the left menu lists all folders.
Each folder points to /folder/manage_workspace (as can be seen
in the status bar).

Normally, /folder/manage_workspace is redirected to
/folder/manage_main, so you see the contents of the folder
on the right.

On some PC's, instead of /folder/manage_workspace
/folder/index_html appears, the page as seen by a visitor,
which is not wat we want.

It has nothing to do with rights. When I log in at my own PC,
everything works fine, but logged in on this "problem PC", I have
the mentioned problem.

How is this possilble? Or better: how can I solve this?

Zope Version
Zope 2.3.0 (source release, python 1.5.2, linux2)
Python Version
1.5.2 (#0, Dec 27 2000, 13:59:38) [GCC 2.95.2 20000220 (Debian GNU/Linux)]
uname -a
Linux northshore 2.2.19 #1 Thu Nov 1 19:52:06 EST 2001 i686 unknown

Thanks a lot,
Edwin.