Netstat does not display any outgoing or listening ports

Hi:

I'm finding some strange behaviour for the nststat command on my XP

Professional PC at home. Usually, just typing netstat will display all

outgoing connections (i.e. web surfing), or netstat -an will display all

outgoing and listening ports.

However, I've noticed lately that neither of those commands displays

anything now - just a blank list. I have to use netstat -ano to get it to

display the outgonig and incoming/listening ports.

Anyone has any ideas what could have gone wrong? Could it be a

registry/permission issue?

Thanks.