I have a puzzling problem where an outputlink is not rendering as a hyperlink to an VF page and nothing happens when I click on it, even though it appears that the html is rendering correctly.

See the outputlink in the VF column "Work" below::

<apex:page controller="MyWorkController">

  <apex:form>

    <apex:pageblock >

        <apex:pageblocktable value="{!WorkTable}"  var="w">

            <apex:column headervalue="Next Action">

                <apex:outputText value="{0,date,MM'/'dd'/'yyyy}" style="{!w.NextActionStyle}">

                              <apex:param value="{!w.NextActionDate}"/>

                </apex:outputText>

            </apex:column>

             <apex:column headervalue="Due Date">

                <apex:outputText value="{0,date,MM'/'dd'/'yyyy}" style="{!w.DueStyle}">

                              <apex:param value="{!w.DueDate}"/>

                </apex:outputText>

            </apex:column>

            <apex:column headervalue="Type">

                    <apex:outputtext value="{!w.WorkItemType}"/>

            </apex:column>

            <apex:column headervalue="Work">

                <apex:outputlink value="/{!w.WorkItemID}"/>

                       {!w.WorkItemName}

            </apex:column>  

        </apex:pageblocktable>

    </apex:pageblock>

    </apex:form>

 </apex:page>

Here is the html.

colspan="1"><a href="https://na14.salesforce.com/a0Kd00000036RrYEAU"></a>

                       Seattle P2 Audit</td>

and this link works if I copy and paste it into the browser (I’m using Firefox)

The VF page cell is just rendered as if it were just an outputtext field.

Any ideas?