I've problems with the WebSearch. There is no Search Result on any inquiry. By clicking the Index topic it's the same problem.
That is an indication that TWiki can't find the egrep and fgrep commands on your system. Check the $egrepCmd and $fgrepCmd variables in twiki/bin/wikicfg.pm.
See other TWikiFAQs.
-- PeterThoeny - 26 Jan 2001