diff --git a/Apex7000_BillValidator/ApexValidator.cs b/Apex7000_BillValidator/ApexValidator.cs
index f5d8ea3..e8bdf46 100644
--- a/Apex7000_BillValidator/ApexValidator.cs
+++ b/Apex7000_BillValidator/ApexValidator.cs
@@ -506,8 +506,8 @@ private void DoResetAcceptor()
         {
             byte[] reset = Request.ResetTarget;
             // Toggle message number (ack #) if last message was okay and not a re-send request.
-            reset[2] = (byte)(0x10 | Ack);
-            Checksum(reset);
+            reset[2] = (byte)((Ack == 0) ? 0x60 : 0x61);
+            reset = Checksum(reset);
             WriteWrapper(reset);
 
             // Toggle ACK number
diff --git a/Apex7000_BillValidator/DataContracts.cs b/Apex7000_BillValidator/DataContracts.cs
index 5a49aaf..e351821 100644
--- a/Apex7000_BillValidator/DataContracts.cs
+++ b/Apex7000_BillValidator/DataContracts.cs
@@ -200,7 +200,7 @@ internal struct Request
     {
                                 //   basic message   0      1      2      3      4      5    6      7
                                 //                   start, len,  ack, bills,escrow,resv'd,end, checksum
-        internal static readonly byte[] BaseMessage = { 0x02, 0x08, 0x10, 0x7F, 0x10, 0x00, 0x03 };
+        internal static readonly byte[] BaseMessage = { 0x02, 0x08, 0x60, 0x7F, 0x10, 0x00, 0x03 };
 
         internal static readonly byte[] ResetTarget = { 0x02, 0x08, 0x61, 0x7f, 0x7f, 0x7f, 0x03 };
     }  
diff --git a/Apex7000_BillValidator_Test/MainWindow.xaml b/Apex7000_BillValidator_Test/MainWindow.xaml
index 72c951e..37440fc 100644
--- a/Apex7000_BillValidator_Test/MainWindow.xaml
+++ b/Apex7000_BillValidator_Test/MainWindow.xaml
@@ -47,7 +47,7 @@
                 <CheckBox x:Name="chkEscrowMode" Content="Escrow Mode" IsChecked="{Binding IsEscrowMode,Mode=OneWay, IsAsync=True}" Checked="chkEscrowMode_Checked" Unchecked="chkEscrowMode_Unchecked"/>
             </StatusBarItem>
             <StatusBarItem Grid.Column="5">
-                <Button x:Name="btnReset" Content="Reset" Height="25" Width="100" Click="btnReset_Click" Visibility="Hidden" />
+                <Button x:Name="btnReset" Content="Reset" Height="25" Width="100" Click="btnReset_Click" />
             </StatusBarItem>
             <StatusBarItem Grid.Column="6">
                 <TextBlock>State:</TextBlock>