Hi everyone!
My application works perfectly until I custom security.  In these moment, the colors and styles in modal panel and other components disapears.  If I go back, everything works again!
In my web.xml I have:

<context-param>
  <param-name>org.richfaces.SKIN</param-name>
  <param-value>#{bb_skin.skin}</param-value>
</context-param>

bb_skin is a backing bean

private String skin;

     public List<SelectItem> getSkins() {
          List<SelectItem> result = new ArrayList<SelectItem>();
          result.add(new SelectItem("plain"));
          result.add(new SelectItem("emeraldTown"));
          result.add(new SelectItem("blueSky"));
          result.add(new SelectItem("wine"));
          result.add(new SelectItem("japanCherry"));
          result.add(new SelectItem("ruby"));
          result.add(new SelectItem("classic"));
          result.add(new SelectItem("deepMarine"));
          return result;
     }

     public SkinBean() {
          this.skin = "ruby";
     }

     public String getSkin() {
          return skin;
     }

     public void setSkin(String skin) {
          this.skin = skin;
     }

In my menu.xhtml

<h:selectOneMenu id="selectSkin" value="#{bb_skin.skin}" style="width: 120px;">
                         <f:selectItems value="#{bb_skin.skins}" />
                         <a4j:support event="onchange" />
                    </h:selectOneMenu>

Until now, everyone work fine.
After this line en pages.xml, the skin's styles and colors disapear!

     <page view-id="*" login-required="true">
          <navigation>     
               <rule if-outcome="home">
                    <redirect view-id="/home.xhtml" />
               </rule>
               <rule if-outcome="page_user_detail">
                    <redirect view-id="/page/user/user.xhtml" />
               </rule>
               <rule if-outcome="page_user_list">
                    <redirect view-id="/page/user/userList.xhtml" />
               </rule>
          </navigation>
     </page>

Someone has some idea about this problem?
Thank you very much!