diff --git a/client/src/org/compiere/grid/VTable.java b/client/src/org/compiere/grid/VTable.java
index 9a67879527..68ca4203d0 100644
--- a/client/src/org/compiere/grid/VTable.java
+++ b/client/src/org/compiere/grid/VTable.java
@@ -104,6 +104,7 @@ public final class VTable extends CTable
 			return;
 		}
 
+		sorting = true;
 		//  other sort column
 		if (modelColumnIndex != p_lastSortIndex)
 			p_asc = true;
@@ -116,6 +117,8 @@ public final class VTable extends CTable
 			+ " - rows=" + rows + ", asc=" + p_asc);
 
 		((GridTable)model).sort(modelColumnIndex, p_asc);
+		
+		sorting = false;
 		//  table model fires "Sorted" DataStatus event which causes MTab to position to row 0
 	}   //  sort
 
diff --git a/client/src/org/compiere/minigrid/MiniTable.java b/client/src/org/compiere/minigrid/MiniTable.java
index c098972959..37706d0496 100644
--- a/client/src/org/compiere/minigrid/MiniTable.java
+++ b/client/src/org/compiere/minigrid/MiniTable.java
@@ -298,7 +298,9 @@ public class MiniTable extends CTable
 			m_minWidth.add(new Integer(10));
 			tc.setMaxWidth(20);
 			tc.setPreferredWidth(20);
-			tc.setResizable(false);
+			tc.setResizable(false);
+			
+			tc.setHeaderRenderer(new VHeaderRenderer(DisplayType.Number));
 		}
 		//  Boolean
 		else if (c == Boolean.class)
@@ -314,6 +316,8 @@ public class MiniTable extends CTable
 				tc.setCellEditor(new DefaultCellEditor(check));
 			}
 			m_minWidth.add(new Integer(30));
+			
+			tc.setHeaderRenderer(new VHeaderRenderer(DisplayType.YesNo));
 		}
 		//  Date
 		else if (c == Timestamp.class)
@@ -323,7 +327,9 @@ public class MiniTable extends CTable
 				tc.setCellEditor(new ROCellEditor());
 			else
 				tc.setCellEditor(new MiniCellEditor(c));
-			m_minWidth.add(new Integer(30));
+			m_minWidth.add(new Integer(30));
+			
+			tc.setHeaderRenderer(new VHeaderRenderer(DisplayType.DateTime));
 		}
 		//  Amount
 		else if (c == BigDecimal.class)
@@ -338,7 +344,9 @@ public class MiniTable extends CTable
 			{
 				tc.setCellEditor(new MiniCellEditor(c));
 				m_minWidth.add(new Integer(80));
-			}
+			}
+			
+			tc.setHeaderRenderer(new VHeaderRenderer(DisplayType.Number));
 		}
 		//  Number
 		else if (c == Double.class)
@@ -353,7 +361,9 @@ public class MiniTable extends CTable
 			{
 				tc.setCellEditor(new MiniCellEditor(c));
 				m_minWidth.add(new Integer(80));
-			}
+			}
+			
+			tc.setHeaderRenderer(new VHeaderRenderer(DisplayType.Number));
 		}
 		//  Integer
 		else if (c == Integer.class)
@@ -363,7 +373,9 @@ public class MiniTable extends CTable
 				tc.setCellEditor(new ROCellEditor());
 			else
 				tc.setCellEditor(new MiniCellEditor(c));
-			m_minWidth.add(new Integer(30));
+			m_minWidth.add(new Integer(30));
+			
+			tc.setHeaderRenderer(new VHeaderRenderer(DisplayType.Number));
 		}
 		//  String
 		else
@@ -373,7 +385,9 @@ public class MiniTable extends CTable
 				tc.setCellEditor(new ROCellEditor());
 			else
 				tc.setCellEditor(new MiniCellEditor(String.class));
-			m_minWidth.add(new Integer(30));
+			m_minWidth.add(new Integer(30));
+			
+			tc.setHeaderRenderer(new VHeaderRenderer(DisplayType.String));
 		}
 	//	log.fine( "Renderer=" + tc.getCellRenderer().toString() + ", Editor=" + tc.getCellEditor().toString());
 	}   //  setColumnClass