I’m having major Error 500 problems as well since updating to Super Cache 0.9.1. Right now I have to leave it turned off or it will quickly down the site.
I’m currently running WP 2.3.3… I’m not sure if it could be an incompatibility with older versions of WP?
Anyway I could really use some help with this, I don’t even remember what my previous version of Super Cache was!