BuddyPress.org

Hi, my user has a small (sub php.ini limit) file, and is a moderator in a group where all members can post. They can select the file and add descriptions etc, but when they click on submit the button disappears and the file is not uploaded. They’re using ie 9 on win7, and my setup is bp1.51 with wp3.2.1. Any ideas what could cause this? I can’t replicate the problem, even using that browser. Thanks in advance.