Thanks. The other poster changed their post so I was able to up vote it too.

After reading your reply, I understand that my comment re @MikeB's post was inappropriate, and have deleted it. Unfortunately, I was unable to reverse my -1 post for MikeB, and for another poster's answer. I've checked but have not been able to find any way to reverse the two -1's I posted. If you can help me with this it will be appreciated.

I don't. And I was wondering why I didn't automatically received an email when someone posted to my question. I think that notification by email, if selected by the user, is much more user friendly.