After two weeks of endless connections with live chat technician and after two connections with tecnician that change almost every thing that can be change (setups , startups , definitions , etc) with no result , i finaly decide to try some drastic mesures.
I uinstall complitely the programs nis 2009 and add on from the computer and reinstall them again ,
and the miracle occur every thing is back to normal.
if you have the same problem maybe you should try the same and save your self some precious time and health .