Bug In Groups: Can't Send Message To Members

If you view someones profile and send them a message the form shows up correctly.
http://www.gaybondageonline.com/compose ... ver=rawTOP

but if you go into a group and view someones profile and try to send them a message, the URL
http://www.gaybondageonline.com/rawTOP/ ... ver=rawTOP
and it goes to a page not found.

As you can see, the second URL adds "compose.php?receiver=rawTOP" after "http://www.gaybondageonline.com/rawTOP/" instead of after your domain like the first URL. How can this be fixed?