We are trying to use sudio to run some reports on a Pervasive and mysql databases. we can run the reports in Netbeans and Crystal but when we try jaspersoft studio the tables disapear after we try and link the tables together. is it a problem with the table size as this is an ERP system so the tables have a lot of info in them. Is there a way to limit in the initial query linking / design? or are there any settings people can think of as to why this would happen? any help is appeciated. Thanks, Jason