Excel Import Browse Button not working

I have set up an Excel Import template. When I try to import the the Excel, the Browse button is not working. Press the browse button, nothing happens. The file open dialogue does not open. Any ideas what causes this. Last week the excel importer was working. But now it does not. I have checked the security for the Excel Importer module and the Configurator role has full read / write access to all Entities.
1 answers

Nick, did you check the userroles? You can do this via Project/Security/UserRoles.

You need to set the right modulerole per userrole.