Windows 7 Return to Unchecked "Always close all tabs" in IE 8

[David737]

If multiple tabs are open when you exit Internet Explorer 8 in Windows 7, you will get a message box" Internet Explorer, Do you want to close all tabs or the current tab? Then two options followed by a unchecked box call 'Always close all tabs' " If you check that box once, how can you return to this option again to uncheck this box. I do not like it always closing all tabs. Is there a menu choise or an easy to find RegEdit Option to fix this problem? Thanks, David