When I do my monthly admin I check my diskspace I can see that WPM cache folder takes up a huuuuge amount of space (750Mb)
I FTP'd to the location and the cach has files going way back to the last time I manually purged. almost 3 months ago
My setting in the plugin area is to purge evey 900 minutes.
I don't think it's ever worked (automated).
Manual purge works fine :)
Any suggestions as to why it wouldn't be working?
FYI - I also use WP Supercache, but that shouldn't prevent the caching (but may be worth noting)