I cannot deactivate WP-Supercache nor delete it. I tried the delete method in the readme, but I still get the following error in the plugins page in WP: "The plugin wp-super-cache/wp-cache.php has been deactivated due to an error: Plugin file does not exist." The deactivate button does nothing, and I cannot delete it through WP because WP thinks its still active. The manual method in the readme was straightforward, but doesn't release whatever hook is used.
I'm trying to test out W3 Total Cache, and WP-superCache seems to block it from activating.