Hey! I have the professional version set up to tie in with my exchange calendar. To read the data, it needs to have a VPN connection to the network. This is fine until I have to rebooting and logging in, rainlendar starts up and crashes (unspecified error and no Dr. Watson). If I remove the exchange synch, it will load upon boot every time. If I try to reload it with the exchange settings after my profile loads without VPN, it will crash. One last thought on the network, it is a non-company machine and thus I had to set my hosts file to point to everything on the network.
This is problematic as my wife has a separate profile on the same machine and doesn't have VPN access to my stuff.