where does fluxbox get dual screen info?

Hi,

Somehow fluxbox seems to be able to find out that I have a two screen
setup (which I configure through xrandr).

This works fine with a radeon driver.

However, when I change the driver to fglrx, I still have two screens
but fluxbox sees them as one big screen (so for example, the choice
for the slit to be put on a specific screen is gone).

Hence my question, which info does fluxbox use to determine the number
of screens? And how can this be influenced?

Thanks in advance,

Hans

-- 
Dr. Hans Schippers
Doctor-Assistant
Formal Techniques in Software Engineering (FoTS)
University of Antwerp
Middelheimlaan 1
2020 Antwerpen - Belgium
Phone: +32 3 265 37 88
Fax: +32 3 265 37 77
http://www.win.ua.ac.be/~hschipp/

A liberal is a person whose interests aren't at stake at the moment
  -- Willis Player

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