>Helpfile says that when hide is mastered it almost never
>fails, yet I have noticed that warriors (maybe other classes
>too, but I have mostly been fighting those) easily see where I
>am at when I hide.

With hide at 100%, it will never fail (unless you have something modifying your hide skill lower).

>Im playing a class with inherent sneak and anyway it doesn't
>seem to matter if I move around or stay still. Also Im playing
>a thief and this has happened in places like Galadon and its
>sewers, so it cannot be because of a wrong terrain type.
>
>As a newbie to CF I chose a thief especially to have a way to
>escape warriors, which seems to be the favourite class for
>lowbie pk'ers here. Do warriors really have some kind of
>ability which I have overlooked or am I missing something else
>here?

As was mentioned, duergars have the ability to see hidden, as do some shapeshifter forms. Hide isn't the silver bullet, but it is pretty good.

So long, and thanks for all the fish!