Private Colormap 

> I tried to apropos owncmap, search for it in xterm man pages... etc, but still
> can't find it. So, please can somebody tell me how I can setup applications
> that hog the colormap to use their own private colormap? thanks!

There is no 'global' option for telling a X11 application to use its own colormap (cf. X11(7)). Unfortunately every program uses a different commandline switch for this purpose. For netscape it is '-install'.

Carsten