screensaver

[Patrizia Canton]

Hi
I installed samba 2.2.0 as PDC on a Pc running Debian 2.2rev2, kernel
2.4.3.
One of the winnt user reports this error:
sometimes it happens to him to leave his PC 
and after a while the screensaver starts running.
when he comes back to work on the PC
he is not anymore able to use Pc resources, he had to reset and
restart the computer.
He told me he did not have this problem before of being part of 
the domain run by the samba server.
Any hint?

thanks 
Patrizia