I can no longer use FilerView to view windows such as "SNMP, Configure" params, or "CIFS, Statistics". I see the typical Java logo fade in, but then "Error. Click for details.", and the details contain a Java exception like "load: class com/netapp/admin/FilerSNMPConfigUIApplet.class not found."
This appears to have started since updating ONTAP to 7.3.4 but can't be certain of that.