Hi,

> warning: failed to load external entity "rdate.docbook"
> index.docbook:82: parser error : Failure to process entity kio-rdate
> &kio-rdate;
>             ^
> index.docbook:82: parser error : Entity 'kio-rdate' not defined
> &kio-rdate;
in branches/KDE/3.5/kdease/doc/kioslave in index.docbook line 82 is
&kio-rlogin;
which calls a rlogin.docbook file from the same directory.

So for the sl language, the doc is not uptodate.

As for your error, check in the entities definition in index.docbook and you 
should see a line like:
<!ENTITY kio-rlogin SYSTEM "rlogin.docbook">
which tell that &kio-rlogin; is an entity for rlogin.docbook
The file rlogin.docbook is in the same directory than index.docbook.

replace rlogin with rdate.

Anne-Marie