session på apache

Hej eksperter..
Er der nogen der kan hjælpe mig med mit session problem. Jeg har installeret server og php på min computer for et stykke tid siden. Men nu da jeg skal til at bruge session på servern, har jeg fundet ud af at det ikke virker .. den kommer med den er fejl-meddelse


Warning: session_start() [function.session-start]: open(/tmp\sess_6f2cdb68f5327425aedbd1550d400386, O_RDWR) failed: No such file or directory (2) in C:\server\Apache2\htdocs\test.php on line 1

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at C:\server\Apache2\htdocs\test.php:1) in C:\server\Apache2\htdocs\test.php on line 1

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\server\Apache2\htdocs\test.php:1) in C:\server\Apache2\htdocs\test.php on line 1
Tryk på Lav test for at lave en test


Lav test - Slet session her
Warning: Unknown(): open(/tmp\sess_6f2cdb68f5327425aedbd1550d400386, O_RDWR) failed: No such file or directory (2) in Unknown on line 0

Warning: Unknown(): Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/tmp) in Unknown on line 0