i used keytool to create a keystore and then create the certificate signing request from it. then, i send the csr for the trial certificate from verisign. then verisign reply with trial certificate to my email. the problem rise when i try to import the certificate. i got error message: 'keytool error: java.lang.Exception: Failed to establish chain from reply'. my keytool command: 'c:\j2sdk1.4.0\bin\keytool -import -alias tomcat -keystore cert -trustcacerts -file certverisign.cer'