Question: I'm running ...[xxx-system]... with Xserver and keep having problems launching a display monitor when executing d.mon (from x0 to x6). Here is the error message: * Graphics driver [x0] started * Color: can't set color 0 * Color: can't set color 0 Answer: You have a conflict with color tables because of using a color consuming program (like Netscape) on a 8bit (256 colors) XWindows system.
First start the GRASS monitor, then start the further application(s) like Netscape etc.
Start XWindows in 15/16/24 bit if you have a sufficient video card. Read on here for setting color depth of XWindows server.
Markus Neteler 10. Sept. 1999