Linux System Always Uses Screen(0)

I am using Sikuli version 1.0rc3 compiled from source on a Redhat EL4 system. I have a 3 monitor setup running X11R7.1.1 and it appears that Sikuli maps all operations to screen 0 i.e. DISPLAY :0.0. The getNumberScreens() method returns 3 as expected, and instantiating screen objects for Screen(0), Screen(1), and Screen(2) appear to work. Trying to use the screen objects to invoke click(), find(), etc. always result in an operation on screen(0) only. If I print the screen objects all 3 return the following:

Screen(0)[0,0 1920x1200] E:Y, T:3.0

So, does this version of Sikuli support a multi-monitor Linux setup and if yes, what could I be doing wrong?

Thanks...