php cookie or server problem ?

[janu]

after I moved data to new server, my authentication script does not work, it says "thank for looging" but when it proeced, to the next pages it asks toe re-login..

after sending a lot of time, I am not sure if its a script error or the server. the same script works great on MANY other servers but not on tihs speciic server.

after spending almost 3 hours, I have found that if I add time() to the cookie, its not saved, but if time() is not added cookie is saved..

thi works fine
setcookie ("cName", "cookieone");

but this does not work
setcookie ("cName", "cookieone", time() + 3600);

my code for loggin user is

$val has different values, I just put random here to give u an idea..

$val = "1,ss";
$cdomain = ".mysite.com";
		
if(!setcookie('user',$val,time()+ (3600*24),'/',$cdomain))
	echo  'Please set your browser cookies ON, in order to log in.';
	
else {								
   echo "successfuly logged, redirecting to blah blah blah...";
}

can anyone tell me what could be wrong ? this script works fine on other server, but this server has PHP Version 5.2.4

thanks for your time..