Thanks all for help so far. I do have Microsoft Office on my system, but I never open it up. I rarely use it, so perhaps i might uninstall it anyway. I have run a disk scan which came out ok. As far as the hard drive and how its configured, I really don't know. I'm afraid I may be a bit out of my league here, but everybody has to start somewhere, so thanks much for help. Chris P.S. Just as I finished this reply, I noticed the activity suddenly ceased! It was the system restore thing, the bastard! Thanks much, you all are brilliant.