>I am Using Tableupdate() and Optimistic Table buffering. It appears to empty the buffers into the tables when you press the "Save" button. Which is what it is supposed to do. But going back and browsing the data, it doesn't seem to be there.

As Erik said, check the Tableupdate return. I'd run this in the debugger in vfp, to see what's happening - also, make sure you have the right Tableupdate parameters for your situation...