Budi,
It sounds like your app finally has enough data in the database to stress the system. You need to make sure your code it optimized. You can read the VFP docs to find general optimization hints. If you have some specific code sections that are now running slowly we might be able to give you more help.
>i've developed a shipping project and already running for about 2 years,
>but now, my project getting slower
>is there any ways to enhanced my database so it can run faster or
>perhaps with validate command ??????