>I'm facing the following rather strange problem. I have a form with agrid and set of command buttons for entering data for a many to manyrelationship. When the forms data session is set to default data sessionit works fine but if I set it to private data session after sometime I get the following error - Record in Use by another User!This is really driving me nuts.Thanks for all the helpSonali

A number of SET commands are scoped to the private data session. Even if you have set them in your main program they revert to their defaults in the private data session. One of these may be causing your problem. You need to set the environment you want in the Load method of your form class when using private data sessions. See the help topic for SET DATASESSION for a list of these SET commands.