error message 'no graphics interface...

ChangeLog

@@ -146,6 +146,7 @@
  * commands.c, postcoms.h, postcoms.c, rawfile.h, rawfile.c
    fteext.h: new command wrs2p, write a s-parameter file
    using Touchstone vers. 1 format.
+ * device.c: Improved error message "no graphics interface ...  
 
 2010-10-15  Holger Vogt
  * src/ciderlib/input/output.c : #include "../misc/tilde.h"

src/frontend/display.c

@@ -170,7 +170,7 @@ DevInit(void)
 
     if (!dispdev) {
 	externalerror(
-	 "no graphics interface; please check compiling instructions");
+	 "no graphics interface;\n please check if X-server is running, \n or ngspice is compiled properly (see INSTALL)");
 	dispdev = FindDev("error");
     } else if ((*(dispdev->Init))()) {
       fprintf(cp_err,