On Fri, 28 Jan 2011 08:40:00 -0800 (PST), Frank Reid © 2010
wrote:

On Jan 28, 9:15*am, Injun Joe wrote:
some of the topics on roff get rather long-- think one now going has
200+ *messages
Is there any way to delete messages as I read them or do I just have
to scroll down thru the mess to see if there are any that have been
added *unread ? thanks
*Joe

Depends on your reader. Most will allow you to have only unread
messages, that is unless you are reading this from Google Groups. If
you are, you're hosed.
Frank Reid

From his headers, he's clearly hosed.