rpm -Vp something.rpm says
"package something.rpm is not installed"
even for packages I just now installed.
Others have seen this same error.
This bug relates to security. I cannot verify
whether 'ls' is cracked, or honest:
If I suspect my system was compromised,
rpm -V packagename can give false results
if the rpm database is also compromised, so
I really do want rpm -Vp to work, in cases
of suspected rootkit, etc.
This has been fixed in rpm-3.0.1. Grab a copy from Raw Hide,
checkout the CVS server, or wait for the pending errata.