WP-Super Cache has been giving me trouble. The trouble is, it keeps caching stuff but it doesn’t actually serve the cached files. I figured it out mostly because the hidden footer at the end of each page kept updating even when it should have been drawing from the existing cache file. And then there was the consistanly mediocre performance.
I had a previous version of WP-Super Cache that worked but after 5 revisions from the developer, I decided to upgrade. My mistake ;-(
So I’m trying hyper-cache. So far, so good.