Can not change setting

I believe someone reported this issue with drupal 6, I'm running D 5.15 Unix and sql 5.x
and the latest GA, Every time I change the setting in the GA module and save they don't change.
Whatever I tried nothing happen.

The module was set to only track the admin, so it's not useful at all. I'm going crazy over. Please I need help.

Thanks in advance.

Tomas