diff -dru xfce-3.8.18/xfce/taskbar.c xfce-3.8.18.fjo/xfce/taskbar.c
--- xfce-3.8.18/xfce/taskbar.c	Thu Sep 26 11:22:22 2002
+++ xfce-3.8.18.fjo/xfce/taskbar.c	Wed Dec 11 22:40:00 2002
@@ -102,7 +102,7 @@
   GtkWidget *gtk_realtaskbar;
   GtkWidget *gtk_labels[TASKBAR_MIN_CELL_NO];
   GtkToggleButton *gtk_toggled_button;
-  GtkWidget *gtk_proc_load_indicator;
+  GtkWidget *gtk_proc_load_indicator, *gtk_proc_disk_indicator;
   int gtk_pressed;
   int base_height;
   int base_width;
@@ -773,11 +773,11 @@
 
 gint taskbar_set_proc_load(gpointer data)
 {
-  char stats_in[256];
+  static char stats_in[2560];
   char *s;
   FILE *stats_f;
-  int user,sys,nice,idle;
-  static int o_user,o_sys,o_nice,o_idle;
+  int user, sys,nice, idle, io = 0;
+  static int o_user, o_sys, o_nice, o_idle, o_io, o_io2;
   float over;
   int busy,total;
   float r,g,b;
@@ -791,16 +791,37 @@
     return TRUE;
   }
   while (fgets(stats_in,sizeof(stats_in),stats_f)!=NULL) {
-    if ((s=strstr(stats_in,"cpu"))!=NULL) {
-      s=s+strlen("cpu");
+    if ((s = strstr(stats_in, "cpu  ")) != NULL) {
+      s = s + strlen("cpu  ");
       sscanf(s,"%d %d %d %d",&user,&sys,&nice,&idle);
       busy=(user-o_user)+(sys-o_sys)+(nice-o_nice); 
       total=busy+(idle-o_idle);
       over=(float)busy/(float)total;
-      HSVtoRGB(&r,&g,&b,0.0,over,1.0);
+      r = over;
+      b = 1.0 - over;
+      g = 0.0;
       gtk_set_bg_color(g_xfce_taskbar.gtk_proc_load_indicator,GTK_STATE_NORMAL,(((int)(r*0xff))<<16)|(((int)(g*0xff))<<8)|(((int)(b*0xff))<<0));
       o_user=user; o_sys=sys; o_nice=nice; o_idle=idle;
-      break;
+    }
+    else if ((s = strstr(stats_in, "disk_io: (")) != NULL) {
+      s = s + strlen("disk_io: (");
+      while ((s = strstr(s, "):(")) != NULL) {
+        s = s + strlen("):(");
+        sscanf(s,"%d,", &user);
+        io += user;
+      }
+      total = io - o_io2;
+      busy = io - o_io;
+      if (total) {
+        over = (float) busy / (float) total;
+        if (over > 1.0) over = 1.0;
+      }
+      else over = 0.0;
+      r = over;
+      b = 1.0 - over;
+      g = 0.0;
+      gtk_set_bg_color(g_xfce_taskbar.gtk_proc_disk_indicator, GTK_STATE_NORMAL, (((int) (r * 0xff)) << 16) | (((int) (g * 0xff)) << 8) | (((int) (b * 0xff)) << 0));
+      o_io2 = o_io; o_io = io;
     }
   }
   fclose(stats_f);
@@ -834,6 +855,7 @@
 
 
   g_xfce_taskbar.gtk_proc_load_indicator=tb_button_close;
+  g_xfce_taskbar.gtk_proc_disk_indicator = (GtkWidget*) gtk_object_get_data(GTK_OBJECT(tb_panel), "tb_button_taskjar");
 
   gtk_widget_show_all(tb_hbox1);
   gtk_widget_show(tb_hrule);