Number of Images not Available

I've recently installed Conquest and have some of my radiologists connecting to it from MACs using Osirix. Overall the response is good. However the Osirix "auto polling" of the server to pull over new images is not working properly. It appears that the server does not know how many images there are for the study so Osirix's polling program is not grabbing the new stuff. I'm stumped, I suspect it is something obvious that I'm just not seeing, but if anyone has an idea I'd be very greatful for some guidance.