Forum Login problem

Helo,
I have some problem with login in different sections of these forum.
I think it can be done because a change in my profile my be done in one section but not in the whole forum.
When I change from one section to another sometimes I'm loged out.
When I look to my profile, from some sections is the new and from other is the old.
For instance many problems are in the AFCAD&TTools section.
Please have a look, when you have time, don't worry, it's not in a hurry.
I seize the oportunity to thanks a lot all the team working in these great site and forum, has been a pleasure to find it.
Kind regards.
I have some problem with login in different sections of these forum.
I think it can be done because a change in my profile my be done in one section but not in the whole forum.
When I change from one section to another sometimes I'm loged out.
When I look to my profile, from some sections is the new and from other is the old.
For instance many problems are in the AFCAD&TTools section.
Please have a look, when you have time, don't worry, it's not in a hurry.
I seize the oportunity to thanks a lot all the team working in these great site and forum, has been a pleasure to find it.
Kind regards.