Slide and Secure Site Access (https)

Hi, I'm having some problems accessing a secure site and would appreciate any assistance anyone could give me.  I'm a newbie here, so please bear with me.

When trying to connect using the Slide client run.bat, the following error is occurring:

[ Slide ] $ open https://localhost/slide/files
connect https://localhost/slide/files/
Error: sun.security.validator.ValidatorException: PKIX path building failed: sun
.security.provider.certpath.SunCertPathBuilderException: unable to find valid ce
rtification path to requested target
[ Slide ] $

However, if I try to connect via Internet Explorer, I don't have any problems (I am able to connect and see the authentication certificate as expected).

Another issue that I'm running into is that when trying to build the project using NetBeans, it is returning an error that it can't find the documents it needs (https://localhost/slide/files/Documents), even though they are out there.  I'm assuming these two issues are related...

These error started occurring after adding the following authentication info in my jakarta-slide-2.1-tomcat-5.0.28\webapps\slide\WEB-INF\web.xml file:

  <security-constraint>
     <web-resource-collection>
        <web-resource-name>Entire Application</web-resource-name>
        <url-pattern>/*</url-pattern>
     </web-resource-collection>
     <user-data-constraint>
        <description>Constrain the entire application to force use of HTTPS</description>
        <transport-guarantee>CONFIDENTIAL</transport-guarantee>
     </user-data-constraint>
   </security-constraint>

Thanks in advance for any help you can provide!

Jeanna