Problems with WP-Supercache
I discovered on one of my occasional rounds of checking sites with other browsers (I normally use the most current version of Firefox under Ubuntu Linux) that IE7 was not showing the current front page. That resulted in a check of WP-Supercache, which was no longer serving cached pages. Firefox had gone back to serving the current PHP. IE7 was getting the expired cache page.
I’m not sure if there was an initial install/configuration error or if I accidentally changed something. In any case, it appears to be working now. I’ll be checking this regularly, but if you see anything that seems strange (other than my ideas!) please e-mail me, and I’ll check it out.