[quote author=رادمهر link=topic=5906.msg35404#msg35404 date=1176838137]
بگید به مدیر سرور براتون Writable کنه !!
[/quote]
مثل اینکه میشه با فایل htaccess
این مشکل رو حل کرد:
sometime you need to change session.save_path because server system distributed more then one machine and you can not reach php.ini file example sourceforge.net. Then you can do that with .htaccess file which is kind of configuration file for Apache under one directory. anyway I added

php_value session.save_path /home/groups/f/f4/f4l/tmp/

now my sessions work very well I hope
البته من چیز زیادی ازش متوجه نشدم
اگر میشه لطفا توضیح بدین
ممنون