>Need help now!
>In my app. from form1 I run other forms. Sometimes (1 or to per day)
>called form (form2,form3,etc) locks. Yes it locks. Don't really know why. Just one form locks I call another one and works fine.
>
>
>Note: all forms are modal, AllwaysOnTop = .t.

I don't know the exact cause of the problem, but...
You shouldn't use modal forms if they are going to call other forms. Modal relly means that the user is going to be locked in the form until he/she enters a response and no other activity is allowed. Switch to modeless.