I also just installed this plugin and both my dashboard and my site display these notices for a full screen or more!
Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of apply_filters(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /hsphere/local/home/usernamexxx/domainxxx.com/wordpress/wp-content/plugins/buddypress/bp-core.php on line 562
and so on for many many many lines, which fills most of a page. the last notice is slightly different:
Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of apply_filters(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /hsphere/local/home/userxxx/domainxxx.com/wordpress/wp-content/plugins/buddypress/bp-xprofile/bp-xprofile-templatetags.php on line 193
I’m using php 5.2.14. and the latest version of wordpress as well as the latest version of buddypress, all installed in the last two days.
I shall research this INI business, but I’m a little bit at a loss at the moment. I’ve expunged the user and domain name for privacy, but you get the idea.