RPM has problems recognizing installed packages

[Carlos <garciasuarez ya com>]

Quite frequently RPM on RH 8.0 seems to have trouble 
indentifying installed packages. I just installed a 
java_plugin and after installing a ask "rpm -qi 
packagename" and I get the message that the package is not 
installed. However, if I try to installe it again, then a 
get a message saying that it is already installed. I have 
rebuild the rpm data base and it keeps on doing the same.

Could someone clarify ?

Thanks

Carlos