unfamilar errors in this evenings updates

[Claude Jones]

I use smart, and have had no problems for months, but this evening I got the 
following error messages - 

Output from libwmf-0.2.8.4-5.2 at i386:
error: %post(libwmf-0.2.8.4-5.2.i386) scriptlet failed, exit status 255

Output from selinux-policy-2.3.2-1.fc5 at noarch:
error: %post(selinux-policy-2.3.2-1.fc5.noarch) scriptlet failed, exit status 
255

Output from libsane-hpaio-1.6.6a-1.1 at i386:
error: %post(libsane-hpaio-1.6.6a-1.1.i386) scriptlet failed, exit status 255

Output from sendmail-8.13.7-2.fc5.1 at i386:
error: %pre(sendmail-8.13.7-2.fc5.1.i386) scriptlet failed, exit status 255
error:   install: %pre scriptlet failed (2), skipping sendmail-8.13.7-2.fc5.1

Output from system-config-kickstart-2.6.6-5 at noarch:
error: %post(system-config-kickstart-2.6.6-5.noarch) scriptlet failed, exit 
status 255

Output from coreutils-5.97-1.1 at i386:
error: %pre(coreutils-5.97-1.1.i386) scriptlet failed, exit status 255
error:   install: %pre scriptlet failed (2), skipping coreutils-5.97-1.1

Output from hplip-1.6.6a-1.1 at i386:
error: %post(hplip-1.6.6a-1.1.i386) scriptlet failed, exit status 255

I've never seen these "scriptlet failed" errors - anyone else getting these, 
or know what they're about?
-- 
Claude Jones
Brunswick, MD, USA