Buenas a todos
Despues de revisar php.ini y lo del safe mode no puedo hacer-lo funcionar .
Warning: session_start() [function.session-start]: SAFE MODE Restriction in effect. The script whose uid is 1248796 is not allowed to access /var/tmp/ owned by uid 0 in /mnt/web8/52/42/51888842/htdocs/sat/environment/environment.php on line 17
Fatal error: session_start() [<a href='function.session-start'>function.session-start</a>]: Failed to initialize storage module: files (path: ) in /mnt/web8/52/42/51888842/htdocs/sat/environment/environment.php on line 17
Saludos