I am having problems with Community Builder / Virtuemart.
It is only happening on Apple (Firefox and Safari). There are no problems with the site on a PC (Firefox and IE).
The first time that the user logs in, they are taken to the content page. Then the user is automatically logged out as soon as they try to view another page. After that, they have to log in again, and now they are able to stay logged in.
If you want I can PM the site details.
My details are:
Joomla version 1.5.14
Community Builder 1.2.2
VirtueMart version 1.1.4
PHP Built on: Windows NT DS4996 5.2 build 3790
Database Version: 5.0.45-community-nt
Database Collation: utf8_general_ci
PHP Version: 5.2.6
Web Server: Microsoft-IIS/6.0
Web Server to PHP interface: cgi-fcgi
Joomla! Version: Joomla! 1.5.14 Stable [ Wojmamni Ama Naiki [VirtueMart eCommerce Bundle] ] 30-July-2009 23:00 GMT