This WordPress plugin by sLa is to fix Missed Scheduled Future Posts Cron Job problems. Full compatible with WP 3.0 Network Multisite and WPMU 2.9.2.
The author says it works with Shared and VPS Hosting. Support all WP version from 2.1 to 3.1 Network Multisite and WPMU 2.9.2
“Nothing is written into your space disk
The wp_option database table is cleaned after uninstall it!
No need to delete anything from the database when deactivate!
Not need other actions except installing or uninstall it!”
Download and info: http://wordpress.org/extend/plugins/wp-missed-schedule/