Thanks Ken,
I unticked the box but changing the account from 'Administrator' to 'Home'
locked me out of the computer. Microsoft Tech. Support got me out of this
predicament after an hour and a half of combined time on hold and going
though a gentleman of Indian? decent where we could not understand each
others accents. However was passed on to Debra in Malaysia who had a good
grasp of the English language and in 'safe' mode cured the problem for a fee
of Aus$.80.00.
To get back to your question I did not have a log on screen originally as my
set would just open up on my desktop and suddenly I developed a Microsoft
Home XP log on window which I had to click onto to get to my desktop.