Found the solution, here it is in case anyone else needs it.....
Open Spybot in Advanced Mode, click on Tools and under the 'IE Tweaks'
section, uncheck the 'Miscellaneous Locks'. Also need to permanently
disable/uncheck the TeaTimer function in Spybot, then HijackThis will
successfully get rid of the registry entry. If you don't have
HijackThis then manually delete the 3 individual entries for the url
in the registry.
Dee.
What are you on about?