diff --git a/src/frontend/plotting/gnuplot.c b/src/frontend/plotting/gnuplot.c
index 1e80798f4..9672af6cd 100644
--- a/src/frontend/plotting/gnuplot.c
+++ b/src/frontend/plotting/gnuplot.c
@@ -111,10 +111,11 @@ void ft_gnuplot(double *xlims, double *ylims,
     /* get linewidth for plotting the graph from .spiceinit */
     if (!cp_getvar("xbrushwidth", CP_NUM, &linewidth, 0))
         linewidth = 1;
-    if (linewidth < 1) linewidth = 1;
+    if (linewidth < 1)
+        linewidth = 1;
     /* get linewidth for grid from .spiceinit */
     if (!cp_getvar("gridwidth", CP_NUM, &gridlinewidth, 0))
-        gridlinewidth = linewidth;
+        gridlinewidth = 1;
     if (gridlinewidth < 1)
         gridlinewidth = 1;
 
diff --git a/src/frontend/plotting/x11.c b/src/frontend/plotting/x11.c
index 7f0b71fda..b60ef09f4 100644
--- a/src/frontend/plotting/x11.c
+++ b/src/frontend/plotting/x11.c
@@ -152,7 +152,7 @@ X11_Init(void)
         return (1);
     }
 
-    if (cp_getvar("old_x11", CP_BOOL, NULL))
+    if (cp_getvar("old_x11", CP_BOOL, NULL, 0))
         old_x11 = TRUE;
 
 #  ifdef DEBUG
@@ -478,7 +478,7 @@ X11_NewViewport(GRAPH *graph)
     }
 
         /* font size */
-    if (!cp_getvar("xfont_size", CP_NUM, &xfont_size))
+    if (!cp_getvar("xfont_size", CP_NUM, &xfont_size, 0))
         xfont_size = 16;
 
     if(old_x11) {
diff --git a/src/frontend/wdisp/windisp.c b/src/frontend/wdisp/windisp.c
index 6f7f99d9b..f6b2a4078 100644
--- a/src/frontend/wdisp/windisp.c
+++ b/src/frontend/wdisp/windisp.c
@@ -3,7 +3,7 @@
  * Wolfgang Muees 27.10.97
  * Holger Vogt  07.12.01
  * Holger Vogt  05.12.07
- * Holger Vogt  01.11.18						
+ * Holger Vogt  01.11.18
  */
 
 #include "ngspice/ngspice.h"
@@ -823,6 +823,18 @@ int WIN_NewViewport(GRAPH *graph)
     graph->absolute.width  = wd->Area.right;
     graph->absolute.height = wd->Area.bottom;
 
+    /* get linewidth information from .spiceinit or .control section */
+    if (!cp_getvar("xbrushwidth", CP_NUM, &linewidth, 0))
+        linewidth = 0;
+    if (linewidth < 0)
+        linewidth = 0;
+
+    /* get linewidth information from .spiceinit or .control section */
+    if (!cp_getvar("gridwidth", CP_NUM, &gridlinewidth, 0))
+        gridlinewidth = 0;
+    if (gridlinewidth < 0)
+        gridlinewidth = 0;
+
     /* wait until the window is really there */
     WaitForIdle();