Thanks. But can you or anyone amplify on this topic please. It's
something I've never properly grasped. The subject of XP passwords
makes me dead nervous. First, this is what I see using that Run
command:
http://img46.imageshack.us/img46/2833/userpasswordpp2.jpg

It says I need to enter a password. But that's not so. I didn't do so
when the PC arrived (ready-built with XP Pro installed from MESH UK),
nor do I do it now with auto-logon. So that appears to be a
contradiction at the outset. And if I did need to do so, how would I
know what the initial p/w was, given I wasn't the person who installed
XP Pro on this PC?

Some more background might help.

The reason that I'm so apprehensive about changing *anything*
concerned with passwords is that I dread getting myself effectively
locked out of my own PC! My previous PC was also supplied by MESH. I
recall an exasperating conversation with their support rep on the
phone 5 years ago, on the first occasion I had to use the Recovery CD,
and had been asked for a password. This guy insisted that "we don't
allocate a password" and I didn't get much further sense from him. (I
can't recall how exactly I eventually accessed the 'recovery' screens,
but I know it was complex and followed days of research. Not something
I want to have to repeat.)

I'm also nervous in case my Scheduled Tasks are affected by messing
with the password. Is the 'password' in these User Accounts dialog the
same as the password needed to allow Scheduled Tasks to be configured
and used? On this new PC, the only way I could get tasks to be
recognised and work properly was to enter what I see often called a
'blank' password. There's worrying ambiguity in that description too:
I'm not going to try it right now but I recall I effectively placed
the cursor in the box(es) and hit Enter. Ideally I'd like to add a
normal alphanumeric password to these tasks, just as somehow I managed
to do on the old PC, but for now I'm settling for this 'null' version.