[John Brown]

If you have to sign back in, something is dumping your cookies. Could be a program you use to clean up temporary cookies that you haven't exempted this web site from. I don't have to re-up my log in except after I mess with my browser settings, but that dumps all of my cookies and I have to log back in on all my favorite web sites.

I'm sure it's one of your computer programs and not a site problem.