diff -Naur old/droplist.c new/droplist.c
--- old/droplist.c	2008-05-21 11:21:14.776020534 +0200
+++ new/droplist.c	2008-05-21 11:30:16.608465070 +0200
@@ -31,6 +31,8 @@
 	GtkWidget *errorbarscheck;
 	GtkWidget *gridcheck;
 	GtkWidget *enhancedmodecheck;
+	GtkWidget *logscaleycheck;
+	GtkWidget *logscalexcheck;
 	GtkWidget *titleentry;
 	GtkWidget *xlabelentry;
 	GtkWidget *ylabelentry;
@@ -196,6 +198,9 @@
 	droplist.errorbarscheck = glade_xml_get_widget (xml, "ShowErrorbars");
 	droplist.gridcheck = glade_xml_get_widget (xml, "ShowGrid");
 	droplist.enhancedmodecheck = glade_xml_get_widget (xml, "EnableSuperSubScripts");
+	droplist.logscaleycheck = glade_xml_get_widget (xml, "EnableLogscaleY");
+	droplist.logscalexcheck = glade_xml_get_widget (xml, "EnableLogscaleX");
+	
 
 	droplist.xlabelentry = glade_xml_get_widget (xml, "XLabel");
 	droplist.ylabelentry = glade_xml_get_widget (xml, "YLabel");
@@ -369,6 +374,10 @@
 		GTK_TOGGLE_BUTTON (droplist.gridcheck));
 	data->enhancedmode = gtk_toggle_button_get_active (
 		GTK_TOGGLE_BUTTON (droplist.enhancedmodecheck));
+	data->logscaley = gtk_toggle_button_get_active (
+		GTK_TOGGLE_BUTTON (droplist.logscaleycheck));
+	data->logscalex = gtk_toggle_button_get_active (
+		GTK_TOGGLE_BUTTON (droplist.logscalexcheck));
 
 	// Captions
 	data->xlabel = gtk_entry_get_text (GTK_ENTRY (droplist.xlabelentry));
diff -Naur old/droplist.glade new/droplist.glade
--- old/droplist.glade	2008-05-21 11:14:41.571894595 +0200
+++ new/droplist.glade	2008-05-21 11:20:32.068524240 +0200
@@ -962,6 +962,52 @@
 			  <property name="y_options"></property>
 			</packing>
 		      </child>
+		      
+		      <child>
+			<widget class="GtkCheckButton" id="EnableLogscaleY">
+			  <property name="visible">True</property>
+			  <property name="tooltip" translatable="yes">Use logarithmic scaling for the y-axis</property>
+			  <property name="can_focus">True</property>
+			  <property name="label" translatable="yes">Enable logarithmic y-axis</property>
+			  <property name="use_underline">True</property>
+			  <property name="relief">GTK_RELIEF_NORMAL</property>
+			  <property name="focus_on_click">True</property>
+			  <property name="active">False</property>
+			  <property name="inconsistent">False</property>
+			  <property name="draw_indicator">True</property>
+			</widget>
+			<packing>
+			  <property name="left_attach">0</property>
+			  <property name="right_attach">2</property>
+			  <property name="top_attach">5</property>
+			  <property name="bottom_attach">6</property>
+			  <property name="x_options">fill</property>
+			  <property name="y_options"></property>
+			</packing>
+			  </child>
+			  
+			  <child>
+			<widget class="GtkCheckButton" id="EnableLogscaleX">
+			  <property name="visible">True</property>
+			  <property name="tooltip" translatable="yes">Use logarithmic scaling for the x-axis</property>
+			  <property name="can_focus">True</property>
+			  <property name="label" translatable="yes">Enable logarithmic x-axis</property>
+			  <property name="use_underline">True</property>
+			  <property name="relief">GTK_RELIEF_NORMAL</property>
+			  <property name="focus_on_click">True</property>
+			  <property name="active">False</property>
+			  <property name="inconsistent">False</property>
+			  <property name="draw_indicator">True</property>
+			</widget>
+			<packing>
+			  <property name="left_attach">0</property>
+			  <property name="right_attach">2</property>
+			  <property name="top_attach">6</property>
+			  <property name="bottom_attach">7</property>
+			  <property name="x_options">fill</property>
+			  <property name="y_options"></property>
+			</packing>
+			  </child>
 
 		      <child>
 			<widget class="GtkCheckButton" id="ShowErrorbars">
diff -Naur old/gnuplot.c new/gnuplot.c
--- old/gnuplot.c	2008-05-21 11:34:34.589273819 +0200
+++ new/gnuplot.c	2008-05-21 11:40:40.716347999 +0200
@@ -140,6 +140,12 @@
 		fprintf (plotscript, "set title \"%s\"\n", escaped);
 		g_free (escaped);
 	}
+	
+	// Logscales
+	if (data->logscaley)
+		fprintf (plotscript, "set logscale y\n");
+	if (data->logscalex)
+		fprintf (plotscript, "set logscale x\n");
 
 	if (data->zeroaxis)
 		fprintf (plotscript, "set zeroaxis\n");
@@ -149,7 +155,7 @@
 
 	if (data->extra)
 		fprintf (plotscript, "%s\n", data->extra);
-
+	
 	char *plotcommand = "plot ";
 	fprintf (plotscript, "%s", plotcommand);
 
@@ -170,7 +176,7 @@
 	if (data->ymaxset)
 		fprintf (plotscript, "%f", data->ymax);
 	fprintf (plotscript, "]");
-
+	
 	// For cycling through point types "with points pt %d"
 	int ptcounter = 0;
 
diff -Naur old/plotdata.h new/plotdata.h
--- old/plotdata.h	2008-05-21 11:29:03.812647277 +0200
+++ new/plotdata.h	2008-05-21 11:29:20.045970819 +0200
@@ -27,6 +27,8 @@
 	unsigned int xminset, xmaxset, yminset, ymaxset;
 	char *extra;
 	unsigned int enhancedmode;
+	unsigned int logscaley;
+	unsigned int logscalex;
 } plotdata;
 
 typedef enum {