The thing is:

An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in system.windows.forms.dll

Additional information: Specified argument was out of the range of valid values.

When running this code:

For i = 0 To ListView1.Items.Count
   If ListView1.Items(i).ToString = splNick(0) Then
       ListView1.Items.RemoveAt(i)
    End If
Next i

That problem haunts me, whatever I do it's there.