Before opening a bug, I'd like to know if we're the only ones with this problem or not 8)

Using "Change password" in zDesktop throws a "Network Error".
Password is not changed and there's an error in the log :
Code:
2008-03-18 10:31:53,677 WARN  [btpool0-9] [ip=127.0.0.1;ua=zclient/5.0;] SoapEngine - handler exception
java.lang.UnsupportedOperationException
	at com.zimbra.cs.account.offline.OfflineProvisioning.changePassword(OfflineProvisioning.java:926)
	at com.zimbra.cs.service.account.ChangePassword.handle(ChangePassword.java:62)
	at com.zimbra.soap.SoapEngine.dispatchRequest(SoapEngine.java:347)
	at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:213)
	at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:118)
	at com.zimbra.soap.SoapServlet.doPost(SoapServlet.java:272)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	at com.zimbra.cs.servlet.ZimbraServlet.service(ZimbraServlet.java:175)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)
	at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:716)
	at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:406)
	at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:211)
	at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
	at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
	at org.mortbay.jetty.handler.RewriteHandler.handle(RewriteHandler.java:176)
	at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
	at org.mortbay.jetty.Server.handle(Server.java:313)
	at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506)
	at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:844)
	at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:644)
	at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
	at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396)
	at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)