I have successfully implemented a stored procedure that bulk loads respondents into the Checkbox database. An issue I have, however, is that the respondents are not allowed to enter the survey until I go into the Administrator interface and view the respondents list for the survey. I don't have to make any changes; simply viewing the list is sufficient to allow the respondents to enter the survey.

Before I view the list, when a respondent logs in they get a screen that says something like "You are not enabled to take this survey." After I view the list, when a respondent logs in they are taken to the first page of the survey.

It appears that there is some sort of caching mechanism involved. Is there some way I can tell Checkbox to flush its cache?