I'm currently testing the RSVP module to see if it will meet our needs. Everything seems to be working well except I'm getting blank white screens about 50% of the time when I try to reply to an invitation or change a previous reply to an invitation. The reply does seem to send properly to the system when this happens though. It's just something that effects what the end user sees when they try to reply to an invite. The blank white screen will cause too much confusion and most will think their replies were not sent. Any idea why I'm having this problem? It is happening in both IE and Firefox.