I had a problem with my plugins so I had to delete and re-install them all. I re-install my W3 Total Cache (version Version 0.8.5.2)
I set it up exactly like it was before, but for some reason it does not say "Apc cached 19/32 queries" (or something like that) like it usually did before, in the page source for non-logged in user.
What is the problem ??
APC is used and database caching is enabled.