On some computers with Windows Vista you can hear a beep sound when you change selection of items in the main window (or any other “ListView” window). This is not a bug in STANMOD but a general problem on Windows Vista. To fix it, delete the registry key HKEY_CURRENT_USER\AppEvents\Schemes\Apps\.Default\CCSelect\.current
You can find more information at http://support.microsoft.com/kb/KB944150
Regards
Mirek