Ok I ran into this problem again today. I'll try to recount what happened the best I can.
-I exited Rainlendar normally. I'm pretty sure I have a working internet connection again but not sure.
-When I ran Rainlendar an hour later only 2-3 items showed up (I have much more).
-I re-enabled error messages and it said that I was not authorized to access the network calendar (this happens occasionally, at least once every few days).
-I went into calendar settings and put in my user/password again and when Rainlendar connected to my network calendar only the same 2-3 items were showing.
-I do have backup calendar enabled.
Why is Rainlendar erasing my network calendar file?
Second of all, my home computer still has not reconnected to the network calendar. If possible, can I restore from my home computer? I realised that the calendar backup was possibly hidden in the registry?