[Pan-users] purge/delete headers?

[glen walpert]

Astraweb has just done a headers database upgrade and requested that all 
users:

"Please purge/delete your headers
Due to a database upgrade, please purge/delete all the headers in your 
newsreader and reload the headers again."

My first inclination is to delete everything in the .pan2.groups 
directory and re-add all of my subscribed groups, but I would like to 
get confirmation of the best method from someone who knows how Pan works.

Thanks.

Glen