Anyone else have this problem where old manpages refuse to die and provide confusing outdated information? I just had this with "hdparm" and "mount". In the first case, there was an old manpage in /usr/man/ which took precedence over the new one in /usr/share/man. In the second case, there was a /usr/man/man8/mount.8 from 1996(!) which took precedence over a more recent /usr/man/man8/mount.8.gz. I did write a script a while back which goes through the manpage hierarchy looking for duplicates, but not sure if this is the way to do it..
-chris