Revoke of " Let this user be granted rights"


I’m using RT v3.4.4 on a Centos 4.2 with Apache 1.3 and mod_perl. As
well am I using Oracle DB. Now when I try to Revoke a "granted rights"
actually nothing happens, well, actually the http goes nuts and doesn’t
finish the request but tries to consume as much cpu as possible. Does
any of you have clue what could be the problem.

BR. Arnar