Eric,Yes, it is possible to schedule Data Warehouse on a daily basis, but only if your report is pulling data on a "daily" granularity.  Also it needs to be pulling semi-recent data (yesterday, last 7 days, etc...)

VPN could also make the difference.  I'm currently VPN'ed into San Jose, so if I were shopping on a site I'd show up from California, but if I hop off of VPN in the middle of my visit to your site, I'll now show up from Utah, but the SiteCat visitor ID cookie will remain the same.  I can tell you th...