I am new to using datapump and we are using an old version of datapump V 6.0. Datapump has recently begin to sort of freeze up and not run any of the scheduled jobs. When i view the logs for certain jobs, they all have an error that states "Too many concurrent instances of this OCX". This error will appear on multiple jobs. After a reboot of the machine it appears to clear whatever problem that was going on but i was wondering if anyone knew of a way to prevent this from happening again or even why this might be occuring?