when using RPM to install ispell-danish.3,1.20-22.i386.rpm (or the ispell-polish....) from the RH-6.1 CD (download version) the 'word' files is NOT installed in the directory (/usr/lib/ispell), but RPM don't report any errors in the instalation. It looks like the instalation is OK, the package is registred as 'installed' (RPM -qa| grep ispell), but still. no word-datafile.
*** This bug has been marked as a duplicate of 4958 ***