Hi Dean,

>Using private data sessions on my forms, intermitanntly, when the form is released, the data session goes to unknown(x), and the app crashes when I close it. It doesn't crash until exiting the the app or program that called the form.

Beside transaction and open tables, dangling references are often the reason for an unknown datasession. If you issue a CREATEOBJECT() within this datasession, the datasession will persist until all created objects have been released.

Christof