login redirect will not work

hey,

registration works very fine.
but if i login, i get all time back to the login.php (the right must be: example.php).

i read the other threads and testing with

define("USE_MYSQL_SESSIONS", false);

in the db_config.php, but the effect is the same: redirect to login.php

if i redirect to other (no protected sites) the redirect will work fine.
it's a mystery for me...
can someone help me, please?

thx maew

what is your value here:

define("START_PAGE", "/classes/access_user/example.php");

it's also

define("START_PAGE", "/classes/access_user/example.php");

an this page exists? do you changed the login page?

yes, all directorys exist and all files exist.
directory and file structur is standard (like your example).

and now? you think that 50K+ downloads are not working?

thank for spending your time,
but i don't know, why the script doesn't correctly run...
i install all folders and files on another server and the script runs very well.
i think, it's perhaps any problem with server configuration...?

I think you gave yourself the answer...