[mapguide-users] MapGuide Site Administrator Authentication failed

[Security - Olisys]

Hi,
I have installed MGOS 2.1 on CentOS 5.4  following this howto :  
http://wiki.osgeo.org/wiki/Building_MapGuide_on_CentOS_5.

When I try to login in the MapGuide Site Administrator, I receive this 
error : Authentication failed. Please enter a valid username and password.

In same situations this error is caused by the server service not 
running, but in my system is up.

Someone has reported same problem?

Can you help me?

Regards,
Andrea Selvaggini