I can't have private datasession in the report because in the form I prepare lot of cursors. Most are remote views opened with parameters and there are a lot of variables used in report also initialised in the form.
I wouldn't like to dezactivate the timer because it checks some things in application and I can't dezactivate every time I call the REPORT command ...
I don't know ... I will dezactivate the timer to see if that is the problem .

Thanks a lot ,
Mihai .

PS Thank you also Borislav