Problems when changing the password of the RAM admin in LDAP

I installed and configured RAM 7.5 to use an LDAP and specified a user in this registry both as RAM administrator and to access the internal Rational Team Concert server.

After changing the user password (it was expired), I was able to login with the new one but a problem occurred: the Applet showing the lifecycle's state diagram disappeared (in the General Settings section under Administration > Communities > Lifecycles). I tried to use different browsers (Chrome, IE, FF) without success. In the Java Console of the browser there was the exception: java.lang.SecurityException: Permission denied.

The only way to solve this problem was restarting RAM server. This should be a bug, correct?

Other issue. After the RAM restart and login, a generic configuration error invited me to have a check to the configuration (the only working Tab). I guessed that this problem was related to the (old) password value used by Rational Asset Manager server to access the internal Rational Team Concert server... I updated this password setting and all worked again.

Is it possible to configure RAM to use an LDAP user registry but configure the RAM/RTC's administrator with a non-LDAP user (e.g. a user of the local OS, as did for the database admin user)?

My Environment:
Windows Server 2008
RAM V7.5.0.1 (Build: RAM7501-I20101213_1034)
DB2 9.7.3

Thanks,
Rai