CB login+Feed display in module=Error 500

Hi, All CB 1.8 upgrade went well with no error what so ever on my joomla website 1.7.5
However, when users are trying to login, they have an internal server error page 500.
Login redirection URL is well setup.
If I disable CB login module my website will work fine again ?
If I enable the standard Joomla login it works fine as well but then i lose the benefit of CB login
Any suggestion ?
Thank you

Could it be an error session ?
Please Help....

It seems to be a problem with the CB login.
After users have logged-in and when the feeds display (Joomla core) is actived and readable as a Module, I have a blank page / internal server error. And, De-activation of the newsfeed module, will resolved the problem.
Using normal Joomla Login module is not causing any problem at all.

Do you have any suggestions ?
Thank you

Hi,
I have a similar problem with CB 1.8 on Joomla 2.5.1. The CB Login module with Search friendly URL (SEO)on, is redirecting on login, logout or registration to non valid URL's.

I did update CB after updating Joomla to Version 2.5.1.

similar problem with new Search feature on joomla 2.5.1 causing an error when logged in on CB login activated.

Thank you walter morel.
After deactivating search modul everything is find. Seems to be a bug.

Regards Lucas