I setup WebSphere monitor last night and verified that the stats & attribute inforamtion I wanted to see were appearing correctly:
EJB Details, Current JDBC Connection Pool Details, etc.
Today after looking at the monitor detail screen I see that the details are now Blank for all the statistics including the above. No restarts have taken place.
Config Info: -WAS ND 5.1.1.13
-WAS Library Jars copied to Appmanager /lib/was directory
-perfServlet app deployed and up
-can access the perfServerlet via web browser directly