In his post #14, Carlos could not remove the 'legacy core' entry from the registry as he had been requested to do by RichieUK.
I right-clicked on my entry in regedit and changed the permissions to allow Delete. I was then able to successfully delete the entry.
I rebooted and so far have been OK since.
I hope this helps.
Edited by rap-copperfields, 15 July 2007 - 09:21 AM.