signature file error on Fedora 11

[Maynard Johnson]

Hi,
I just installed systemtap-0.9.8-1 rpm on Fedora 11 and tested my stapitrace 
rpm.  The test passes, but I'm getting some messages cluttering up the output 
that I had not seen before during early F11 development.  Here's what I'm seeing.

================================
Unable to obtain information on the signature file 
/tmp/stapDBZIVB/stap_9bb36eb195372b67a8384d41263c1160_46713.ko.sgn.
Unknown NSS error: -5950.
================================

What's causing this?

Thanks.
-Maynard