I sent a bug report about this yet, for a previous version...
Now, luckily, works page caching with disk optimized, previously only with disk.
But minyfy doesn't work at all.
No problems for html minifying, but for css and js give always an error 400; simply, the plugin does not create the requested files, for example firebug says:
"NetworkError: 404 Not Found - http://spingitoridicavalieri.webatu.com/wp-content/w3tc/min/3f5a17/default.include-nb.233486005.js "
and, yes, the folder w3tc/min just contains some ".id" files, like default.include-nb.js.id , inside a folder called 3f5a17 (for my theme, I argue)
The folder is of course writable (w3tc always creates .id files), and I surely disabled other plugins I'm forced to use for optimization (autoptimize, head cleaner, and still the do not fully work...)
Well, now, thits is my compatibility:
Server Modules & Resources: PHP Version: 5.2.10 PHP Timezone: Not set Web Server: Apache FTP functions: OK (required for Self-hosted (FTP) CDN support) Multibyte String support: OK (required for Rackspace Cloud Files support) cURL extension: OK (required for Amazon S3 support) zlib extension: OK (required for compression support) Opcode cache: Not installed Memcache extension: Not installed Mime type detection: Not installed Hash function: hash (required for NetDNA purge support) Safe mode: Off Open basedir: On: /home/:/usr/lib/php:/tmp zlib output compression: Off mod_mime: Not detected mod_expires: Not detected mod_deflate / mod_gzip: Not detected mod_headers: Not detected mod_env: Not detected mod_setenvif: Not detected mod_rewrite: Not detected WordPress Resources /home/MYUSERNAME/public_html/wp-content: Not write-able Not write-able Uploads directory: Write-able WP_CACHE define: OK Fancy permalinks: OK Network mode: Off
And, ops, my site is http://spingitoridicavalieri.webatu.com .
Well, I love this plugin, my site is an amatorial one, but the same I really really hope to resolve this issue, just for sake of knowledge :D