Well, now you all are just making me mad. It didn't work for me at all.

I tried deleting cache and cookies, and then siging in to Yahoo. I left up the IE screen. I tried logging in from groups.yahoo.com and also from login.yahoo.com. I verified that I do indeed have cookies from Yahoo for IE. I up'd the amount of drive space for IE cache. I tried checking and unchecking the "remember me" box on the login screen.
In PGO, I checked and unchecked Skip Authorisation. I upgraded from .39 to .40. I tried it with message caching turned on and turned off. I tried checking Use Old Format.
I deleted all Yahoo cookies in Firefox, and cleared cache.
I'll try it all again when I get home on one of the other computers.

If it doesn't work, I'm going to stomp my feet and stuff.
Lorraine