There are no caching plugins active on this site. I do have WP Super Cache on the network level (see below) but it is not activated on this particular site. I can activate it if you think it would make a difference…Here is the system info…
### Begin System Info ###
Child Theme: N/A
Multi-site: Yes
SITE_URL: http://www.sys-kool.com
HOME_URL: http://www.sys-kool.com
Headway Version: 3.4.4
WordPress Version: 3.5.1
PHP Version: 5.3.10-1ubuntu3.5
MySQL Version: 5.5.29-0ubuntu0.12.04.1
Web Server Info: nginx/1.1.19
GD Support: Yes
PHP Memory Limit: 128M
PHP Post Max Size: 30M
WP_DEBUG: Disabled
Debug Mode: Disabled
Show On Front: posts
Page On Front: 0
Page For Posts: 0
Responsive Grid: Disabled
Caching Allowed: Yes
Caching Plugin: WP Super Cache
SEO Plugin: No SEO plugin active
Operating System: Mac
Browser: Mozilla Firefox
Browser Version: 12.0
Full User Agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:12.0) Gecko/20100101 Firefox/12.0
WEB FONTS IN USE:
None
ACTIVE PLUGINS:
Akismet 2.5.7
http://akismet.com/?return=true
Connections 0.7.4.1
http://connections-pro.com/
Gravity Forms 1.6.12
http://www.gravityforms.com
MaxButtons Pro 1.2.0
http://maxbuttons.com
NextGEN Gallery 1.9.12
http://www.nextgen-gallery.com/
Pizazz ExcerptsPlus (Headway 3 Block) 2.9.18
http://pizazzwp.com
PizazzWP GalleryPlus (Headway 3 Block) 1.5.15
http://pizazzwp.com
Types – Complete Solution for Custom Fields and Types 1.1.3.4
http://wordpress.org/extend/plugins/types/
WP Post Columns 2.2
http://www.samburdge.co.uk/plugins/wp-post-columns-plugin-2
WP Views 1.1.3
http://wp-types.com/
### End System Info ###