floz on "[Plugin: WP Super Cache] Can't login with late init"

@Donncha: Tried debugging, but everything looks fine, no error messages. Narrowed it down a tiny bit: If I manually rm -rf the wp-content/cache/supercache/www.mydomain.com folder, then it works all well, and I can log in correctly. But if I then log out, and try to log in again, I have that direct redirct to the home page problem (when trying to post a comment, I get shot directly to the home page, and the comment is not posted)...