Cisco :: LMS 4.2 Fault Monitor - Device Name And Frequency Of Events

I've just installed LMS 4.2, like it a lot so far. In the Fault Monitor, the Device Name column shows the device's IP address rather than the host name.  We need for it to show the host name, for ease of troubleshooting; most folks don't have the IP addresses memorized. Likewise, when an email is sent out for an event, the managed device field also shows up as the device's IP address.
 
The devices were all discovered with their IP addresses rather than a host name...should LMS have automatically found their host names?  Regardless, I manually updated all of the device's host names, yet they still display as an IP address in the fault monitor. 
 
Also, it appears I need to figure out some way to throttle alerts.  One particular device will report an event (ie a temperature out of range) dozens of times in a polling period...several per second, even though it's the same alert.