context menu IE8 open in a new tab

I have xp home, sp3, with IE8.

On other versions of xp, believe all others were xp pro, when clicking on a link in IE with the right mouse button, showing the context menu or submenu, an option shows saying 'open in a new tab'.

I don't have open in a new tab, only showing an option to open in a new window.

Can someone point me to a reg edit or some other pointer to 'enable' the new tab option from the context menu? I have searched the internet with little to work from.

I looked inside regedit for 'new window' finding an entry:

HKEY_CLASSES_ROOT\InternetShortcut\shell\Open In New Window\command
rundll32.exe shdocvw.dll,OpenURL %1 - string value


HKEY_CURRENT_USER\Software\Microsoft\Advanced INF Setup\IE UserData NT\RegBackup\0.map
- string - 916fd2a2d3504407
,33,HKCU,SOFTWARE\Microsoft\Internet Explorer\New Windows,PopupMgr, - string value
- string - fe6652f1f5faa273
,33,HKCU,SOFTWARE\Microsoft\Internet Explorer\New Windows,UseSecBand, - string value


HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\New Windows
three entries but do not look to be applied toward the 'context menu'


HKEY_LOCAL_MACHINE\SOFTWARE\Classes\InternetShortcut\shell\Open In New Window\command
rundll32.exe shdocvw.dll,OpenURL %1 - string value

 

i have reset to the default settings and did not bring out the new tab option from the context menu.

i have disabled all add-ons, it is a fresh installation not a lot installed, and did not bring out the new tab option.