CB Login-logout annoying problems

Dear CB,

I have successfully installed CB and Joomla 2.5 with no problems.
But when it comes to CB Login, sometimes a problem occurs.
I have set menu items to appear for registered users (eg. logout), BUT sometimes after login, my logout menu items does not appear. But when I click on login, it says I'm already logged in. Now this has forced me to make logout menu items to appear for public, otherwise logged in users cannot logout because its not there AND cannot login because it says its already logged in, and stuck in this wierd loop.
I wonder if this is a bug or its just me not setting it right.
But this problem does not happen all the time.
Any ideas?

Thanks,
Teddy

Okay, here is an addition to this...

I have just tried to register, reconfirmed link, success.
I log in, and tried to post an ads via adsmanager for cb plugin.
then it came up with "session expired please login again", which does not make sense because since I login, I right away post an ads, so its like 10seconds right after I login, and its telling me session expired?

And if I visit other profile after login, then click back to my profile, it says error 403. and I would have to login again.

Its not supposed to display that error, Please help..

Thanks,
Teddy

Sounds like a caching problem. If you've cache enabled then disable it and purge whatever cache is stored. Ensure the session duration is also set to something appropriate. Please also provide what PHP version your server is running.

My PHP version is 5.3.10.
Caching was already disabled when the problem happened.
Here is my site: www.asikk.com
and here is the pic.

Tq,
Teddy

What usergroup is the user after registration? Ensure they're at least "Registered".

Yes, the user is registered. But it even happen to me as super users.