How to Photostream in Aperture?

Hi guys,

All 3 boxes are checked in Preferences>Photostream, the curved arrow in Photostream keeps going around in Inspector, but no monthly projects are created with images in them, and none of the new images downloaded to my MBook Pro, while I'm on the road, are showing up in Photostream.

All the ones that are in Aperture on my iMac at home are there though. I left my iMac on while I'm gone to make sure Photostream will make them available there as well.

Thanks a lot,

Raphael