hello, I had created a simple database application using 4th category drivers. The application works sucessfully when I execute the .class file. I had build the application using JBuilder IDE. The problem start When I try to deploy the application into a executable jar file using the jbuilder options, and when i try executing the .jar files the framework of the application comes up, but the database apart does not get executed .... Can some help me ... to find a solution ... Urgent !!! Cheers!!!