The modify class command has a bug that if used from a form you can not use the find function while in the class without the class being closed unexpectedly.

To see this behavior, create a form and drop a command button on the form. In the button's click event put the code, "modify class ?". Run the form, click on the button, and select a class to modify. Now hit CTRL+F or select Find from the edit menu. You should be promptly kicked back to the form.

Does anyone know a way around this behavior?