Use commandLink to forward non-jsf page cause other commandLink invalidate

Question

Hi :
I use commandLink to forward to non jsf page , after click the link , it worked , success to 1.jsp. Then I click another link , the other commandLink doesn't work.
any one have the same problem ?
JSF page:
<h:commandLink action="#{MenuHandler.go}">
     <h:outputText value="process" />
     <f:param value="1.jsp" name="forward" />
</h:commandLink>
MenuHandler.java
  public static String go() {
            HttpServletRequest req = getRequest();
            String forward = req.getParameter("forward");
            getExternalContext().redirect(forward);
            FacesContext.getCurrentInstance().responseComplete();
            return "success";
  }ps:there is one <h:form/> in my jsf page and I use:
jdk1.5.0
jsf-1_1
Tomcat-5.0.28

Answer 1

to supplement:
I found something strange:
The JSF page I used is for menu purpose.
So there is a <BASE target="mainFrame"> tag in my JSF page.
If I mark it . Then other commandLink can work ~~
Because the page is a menu page , so I can't mark the <BASE target="mainFrame">