diff --git a/Controls.LookupGrid/My Project/AssemblyInfo.vb b/Controls.LookupGrid/My Project/AssemblyInfo.vb
index 3c468bb3..24865c0c 100644
--- a/Controls.LookupGrid/My Project/AssemblyInfo.vb	
+++ b/Controls.LookupGrid/My Project/AssemblyInfo.vb	
@@ -31,5 +31,5 @@ Imports System.Runtime.InteropServices
 ' übernehmen, indem Sie "*" eingeben:
 ' <Assembly: AssemblyVersion("1.0.*")>
 
-<Assembly: AssemblyVersion("3.4.2.0")>
-<Assembly: AssemblyFileVersion("3.4.2.0")>
+<Assembly: AssemblyVersion("3.4.3.0")>
+<Assembly: AssemblyFileVersion("3.4.3.0")>
diff --git a/Controls.LookupGrid/frmLookupGrid.vb b/Controls.LookupGrid/frmLookupGrid.vb
index 46f22a8d..ffad6cc9 100644
--- a/Controls.LookupGrid/frmLookupGrid.vb
+++ b/Controls.LookupGrid/frmLookupGrid.vb
@@ -98,10 +98,16 @@ Public Class frmLookupGrid
         _View.BestFitColumns()
 
         ' Datenspalte zusätzlich in der Breite anpassen
-        If _View.Columns.Count = 0 Then
-            Dim oDataColumn As GridColumn = _View.Columns.Item(_DataColumn)
-            oDataColumn.BestFit()
-        End If
+        Try
+            If _View.Columns.Count = 0 Then
+                Dim oDataColumn As GridColumn = _View.Columns.Item(_DataColumn)
+                oDataColumn.BestFit()
+            End If
+        Catch ex As ArgumentOutOfRangeException
+
+        Catch ex As Exception
+
+        End Try
     End Sub
     Private Sub frmLookupGrid_Shown(sender As Object, e As EventArgs) Handles Me.Shown
         BringToFront()