Working with the Head First C# ebook. entered the single line of code in

messageBox.show ( "Contact List 1.0. \nWritten by: Phil Pense", "About") ;

Same line of code was entered in two separate but identical projects. Debug of the first goes to completion and generates the About panel. the second does not generate the About panel. The debug readout is as follows:

'Head First Contacts Project.vshost.exe' (Managed): Loaded 'C:\Windows\assembly\GAC_64\mscorlib\2.0.0.0__b77a5c561934e089\mscorlib.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'Head First Contacts Project.vshost.exe' (Managed): Loaded 'C:\Windows\assembly\GAC_MSIL\Microsoft.VisualStudio.HostingProcess.Utilities\9.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.HostingProcess.Utilities.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'Head First Contacts Project.vshost.exe' (Managed): Loaded 'C:\Windows\assembly\GAC_MSIL\System.Windows.Forms\2.0.0.0__b77a5c561934e089\System.Windows.Forms.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'Head First Contacts Project.vshost.exe' (Managed): Loaded 'C:\Windows\assembly\GAC_MSIL\System\2.0.0.0__b77a5c561934e089\System.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'Head First Contacts Project.vshost.exe' (Managed): Loaded 'C:\Windows\assembly\GAC_MSIL\System.Drawing\2.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'Head First Contacts Project.vshost.exe' (Managed): Loaded 'C:\Windows\assembly\GAC_MSIL\Microsoft.VisualStudio.HostingProcess.Utilities.Sync\9.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.HostingProcess.Utilities.Sync.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'Head First Contacts Project.vshost.exe' (Managed): Loaded 'C:\Windows\assembly\GAC_MSIL\Microsoft.VisualStudio.Debugger.Runtime\9.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.Debugger.Runtime.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'Head First Contacts Project.vshost.exe' (Managed): Loaded 'C:\Users\maurice\Documents\Visual Studio 2008\Projects\Head First Contacts Project\Head First Contacts Project\bin\Debug\Head First Contacts Project.vshost.exe', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'Head First Contacts Project.vshost.exe' (Managed): Loaded 'C:\Windows\assembly\GAC_MSIL\System.Core\3.5.0.0__b77a5c561934e089\System.Core.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'Head First Contacts Project.vshost.exe' (Managed): Loaded 'C:\Windows\assembly\GAC_MSIL\System.Xml.Linq\3.5.0.0__b77a5c561934e089\System.Xml.Linq.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'Head First Contacts Project.vshost.exe' (Managed): Loaded 'C:\Windows\assembly\GAC_MSIL\System.Data.DataSetExtensions\3.5.0.0__b77a5c561934e089\System.Data.DataSetExtensions.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'Head First Contacts Project.vshost.exe' (Managed): Loaded 'C:\Windows\assembly\GAC_64\System.Data\2.0.0.0__b77a5c561934e089\System.Data.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'Head First Contacts Project.vshost.exe' (Managed): Loaded 'C:\Windows\assembly\GAC_MSIL\System.Deployment\2.0.0.0__b03f5f7f11d50a3a\System.Deployment.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'Head First Contacts Project.vshost.exe' (Managed): Loaded 'C:\Windows\assembly\GAC_MSIL\System.Xml\2.0.0.0__b77a5c561934e089\System.Xml.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
The thread 0x9dc has exited with code 0 (0x0).
The thread 0x17d4 has exited with code 0 (0x0).
The thread 0x195c has exited with code 0 (0x0).
'Head First Contacts Project.vshost.exe' (Managed): Loaded 'C:\Users\maurice\Documents\Visual Studio 2008\Projects\Head First Contacts Project\Head First Contacts Project\bin\Debug\Head First Contacts Project.exe', Symbols loaded.
The thread 0x153c has exited with code 0 (0x0).
The thread 0x1910 has exited with code 0 (0x0).
The thread 0x11a4 has exited with code 0 (0x0).
The thread 0x658 has exited with code 0 (0x0).
The program '[1904] Head First Contacts Project.vshost.exe: Managed' has exited with code 0 (0x0).


I write as a novice and can see no apparent error that would prevent the "About" panel to present itself. IDE image is uploaded to:https://skydrive.live.com/redir?resi...F3F75A51A!1393 Guidance sought