diff --git a/src/OutlookGoogleCalendarSync/Extensions/ColourPicker.cs b/src/OutlookGoogleCalendarSync/Extensions/ColourPicker.cs
index ba0743aa..db1120ac 100644
--- a/src/OutlookGoogleCalendarSync/Extensions/ColourPicker.cs
+++ b/src/OutlookGoogleCalendarSync/Extensions/ColourPicker.cs
@@ -35,7 +35,8 @@ public void AddStandardColours() {
         /// Add just the colours associated with categories
         /// </summary>
         public void AddCategoryColours() {
-            Items.AddRange(OutlookOgcs.Calendar.Categories.DropdownItems().ToArray());
+            if (OutlookOgcs.Factory.OutlookVersionName != OutlookOgcs.Factory.OutlookVersionNames.Outlook2003) 
+                Items.AddRange(OutlookOgcs.Calendar.Categories.DropdownItems().ToArray());
         }
 
         public void ColourPicker_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e) {
diff --git a/src/OutlookGoogleCalendarSync/Forms/MainForm.Designer.cs b/src/OutlookGoogleCalendarSync/Forms/MainForm.Designer.cs
index 82939350..c911e175 100644
--- a/src/OutlookGoogleCalendarSync/Forms/MainForm.Designer.cs
+++ b/src/OutlookGoogleCalendarSync/Forms/MainForm.Designer.cs
@@ -669,6 +669,7 @@ private void InitializeComponent() {
             // 
             // btTestOutlookFilter
             // 
+            this.btTestOutlookFilter.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
             this.btTestOutlookFilter.FlatStyle = System.Windows.Forms.FlatStyle.System;
             this.btTestOutlookFilter.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
             this.btTestOutlookFilter.ForeColor = System.Drawing.SystemColors.ControlText;
@@ -904,6 +905,7 @@ private void InitializeComponent() {
             // 
             // lGoogleAPIInstructions
             // 
+            this.lGoogleAPIInstructions.Anchor = System.Windows.Forms.AnchorStyles.Top;
             this.lGoogleAPIInstructions.BackColor = System.Drawing.SystemColors.Window;
             this.lGoogleAPIInstructions.BorderStyle = System.Windows.Forms.BorderStyle.None;
             this.lGoogleAPIInstructions.Location = new System.Drawing.Point(13, 20);
diff --git a/src/OutlookGoogleCalendarSync/Forms/MainForm.cs b/src/OutlookGoogleCalendarSync/Forms/MainForm.cs
index 61431bf6..6c1bf151 100644
--- a/src/OutlookGoogleCalendarSync/Forms/MainForm.cs
+++ b/src/OutlookGoogleCalendarSync/Forms/MainForm.cs
@@ -205,6 +205,7 @@ private void updateGUIsettings() {
             foreach (KeyValuePair<String, MAPIFolder> calendarFolder in OutlookOgcs.Calendar.Instance.CalendarFolders) {
                 if (calendarFolder.Value.EntryID == Settings.Instance.UseOutlookCalendar.Id) {
                     cbOutlookCalendars.SelectedIndex = c;
+                    break;
                 }
                 c++;
             }
@@ -226,9 +227,13 @@ private void updateGUIsettings() {
                 "Include" : "Exclude";
             if (OutlookOgcs.Factory.OutlookVersionName == OutlookOgcs.Factory.OutlookVersionNames.Outlook2003) {
                 clbCategories.Items.Clear();
+                clbCategories.Items.Add("Outlook 2003 has no categories");
                 cbCategoryFilter.Enabled = false;
                 clbCategories.Enabled = false;
                 lFilterCategories.Enabled = false;
+                btColourMap.Visible = false;
+                Settings.Instance.AddColours = false;
+                cbAddColours.Enabled = false;
             } else {
                 OutlookOgcs.Calendar.Categories.BuildPicker(ref clbCategories);
                 enableOutlookSettingsUI(true);
@@ -300,6 +305,7 @@ private void updateGUIsettings() {
                 Sync.Direction sd = (syncDirection.Items[i] as Sync.Direction);
                 if (sd.Id == Settings.Instance.SyncDirection.Id) {
                     syncDirection.SelectedIndex = i;
+                    break;
                 }
             }
             if (syncDirection.SelectedIndex == -1) syncDirection.SelectedIndex = 0;
@@ -1325,9 +1331,17 @@ private void tbTargetCalendar_SelectedItemChanged(object sender, EventArgs e) {
                         Settings.Instance.TargetCalendar = Sync.Direction.GoogleToOutlook;
                         this.ddGoogleColour.Visible = false;
                         this.ddOutlookColour.Visible = true;
+                        if (OutlookOgcs.Factory.OutlookVersionName == OutlookOgcs.Factory.OutlookVersionNames.Outlook2003)
+                            this.cbColour.Checked = false;
+                        break;
+                    }
+                case "target calendar": {
+                        Settings.Instance.TargetCalendar = Settings.Instance.SyncDirection;
+                        if (OutlookOgcs.Factory.OutlookVersionName == OutlookOgcs.Factory.OutlookVersionNames.Outlook2003 
+                            && Settings.Instance.SyncDirection == Sync.Direction.GoogleToOutlook)
+                            this.cbColour.Checked = false;
                         break;
                     }
-                case "target calendar": Settings.Instance.TargetCalendar = Settings.Instance.SyncDirection; break;
             }
         }
 
diff --git a/src/OutlookGoogleCalendarSync/OutlookOgcs/OutlookOld.cs b/src/OutlookGoogleCalendarSync/OutlookOgcs/OutlookOld.cs
index 722fefd6..5057fcd8 100644
--- a/src/OutlookGoogleCalendarSync/OutlookOgcs/OutlookOld.cs
+++ b/src/OutlookGoogleCalendarSync/OutlookOgcs/OutlookOld.cs
@@ -259,10 +259,10 @@ private void getDefaultCalendar(NameSpace oNS, ref MAPIFolder defaultCalendar) {
                 string excludeDeletedFolder = folders.Application.Session.GetDefaultFolder(OlDefaultFolders.olFolderDeletedItems).EntryID;
 
                 Forms.Main.Instance.lOutlookCalendar.BackColor = System.Drawing.Color.Yellow;
-                Forms.Main.Instance.lOutlookCalendar.Text = "Getting calendars";
+                Forms.Main.Instance.SetControlPropertyThreadSafe(Forms.Main.Instance.lOutlookCalendar, "Text", "Getting calendars");
                 findCalendars(((MAPIFolder)defaultCalendar.Parent).Folders, calendarFolders, excludeDeletedFolder, defaultCalendar);
                 Forms.Main.Instance.lOutlookCalendar.BackColor = System.Drawing.Color.White;
-                Forms.Main.Instance.lOutlookCalendar.Text = "Select calendar";
+                Forms.Main.Instance.SetControlPropertyThreadSafe(Forms.Main.Instance.lOutlookCalendar, "Text", "Select calendar");
             } catch (System.Exception ex) {
                 OGCSexception.Analyse(ex, true);
                 throw;
diff --git a/src/OutlookGoogleCalendarSync/Settings.cs b/src/OutlookGoogleCalendarSync/Settings.cs
index 63b8049f..e5f62665 100644
--- a/src/OutlookGoogleCalendarSync/Settings.cs
+++ b/src/OutlookGoogleCalendarSync/Settings.cs
@@ -505,8 +505,11 @@ public void LogSettings() {
             }
             if (ColourMaps.Count > 0) {
                 log.Info("  Custom Colour/Category Mapping:-");
-                ColourMaps.ToList().ForEach(c => log.Info("    " + OutlookOgcs.Calendar.Categories.OutlookColour(c.Key) + ":"+ c.Key + " <=> " + 
-                    c.Value + ":" + GoogleOgcs.EventColour.Palette.GetColourName(c.Value)));
+                if (OutlookOgcs.Factory.OutlookVersionName == OutlookOgcs.Factory.OutlookVersionNames.Outlook2003)
+                    log.Fail("    Using Outlook2003 - categories not supported, although mapping exists");
+                else
+                    ColourMaps.ToList().ForEach(c => log.Info("    " + OutlookOgcs.Calendar.Categories.OutlookColour(c.Key) + ":" + c.Key + " <=> " +
+                        c.Value + ":" + GoogleOgcs.EventColour.Palette.GetColourName(c.Value)));
             }
             log.Info("  Obfuscate Words: " + Obfuscation.Enabled);
             if (Obfuscation.Enabled) {