I've created a report in CR XI, worked fine till yesterday noon.  I connect using a System DSN towards an SQL database.  When testing the connection in the Microsoft ODBC dat source administration tool, it gives no errors at all.  Since yesterday afternoon I get errors whilst refreshing my data.  I always get an error "invalid argument provided".  When opening the database expert I see my DSN connection but the table shown as selected is has the same name as the one used in my dsn, but it is not at all the connection I've set up.  Under "my connections" I have a yellow cube without name, and the DSN I've created myself.  The little "connector" on the icon showing when you have a connection is missing.  When clicking on either connection I get the same error "invalid argument provided".  Pointing towards a new odbc connection isn't possible neither, same error code.  When I close this report and start a new report I can point towards my dsn connection and I can consult the data.  Can somebody please put me back on track?  Please see the file in atachment.  Thanks for the help, Stijn