>Hi
>
>The problem happens in my own laptop
>It's plug in a network to my PC where the application + DBFs are
>
>I will be happy if it's a failure of my own laptop rather than VFP problem
>
>I do not close the app
>The problem happens when the application freezes for a while and then the failure message
>is shown by window: "could not save the file dbf to disk"
>After this, the table becomes corrupted

This sounds more like a network issue than anything else. Is it wireless? Is your network connection dropping? Is the network card going into standby mode? Change your power settings to those of a desktop pc - always on - and see if it makes a difference.