Fixed initialization of the format dropdown list

PROMS/VEPROMS User Interface/frmFolderProperties.cs

@@ -150,6 +150,10 @@ namespace VEPROMS
 			ppCmbxFormat.DisplayMember = "FullName";
 			ppCmbxFormat.ValueMember = "FullName";
 			ppCmbxFormat.DataSource = FormatInfoList.SortedFormatInfoList;
+			if (_FolderConfig.FormatSelection != null)
+				ppCmbxFormat.SelectedValue = _FolderConfig.FormatSelection;
+			else
+				ppCmbxFormat.SelectedIndex = -1;
 			// Get the saved settings for this user
 			//
 			// This setting tells us if we should display the default values on this property page