If you didn't change those settings, who did?

Control Panel Display Screen Saver tab remove the checkmark from
'On resume, display Welcome screen'

Control Panel Power Options Power Schemes tab make changes as you wish

---
Leonard Grey
Errare humanum est

Tom wrote:
When i used to leave my Windows XP machine, after two minutes it would go to
the screensaver, it would stay on there for 30mins before i told it to go to
standby. Then, around two months ago, its started going to the 'log on'
screen every four minutes, when all i want it to do is stay on the
screensaver like it used to.

How can i stop it from doing this?

Thanks