My system has been running for months pretty much unattended as I have been traveling. A little while back when I was away I noticed that my front porch light was on in the daytime from looking at my security cams through my Droid 2. When I got home I found that the sunrise and sunset times were not correct. I then looked at the location settings and it seems it is not working correctly. Any ideas what could have changed? I tried entering the long/lat manually and that didn't work either.