Running .ppt or .pps in browser won't automatically advance slides

[Rushy]

Hi...

I have a presenatation that has slides containing animations that need
to be reset occasionaly. The way to do this (I have learned from this
newsgroup) is to have the presentation go to a dummy slide (set to
automatically advance after 0 secs) before the slide containing the
animations. Voila! - the animations are reset!

This works fine when run from within PowerPoint (view/slideshow) and
from the .pps viewed from the PowerPoint Viewer. However, I need to run
the .pps within a browser and everything works apart from the automatic
slide advance. I can advance it manually but that is sort of defeating
the object. I have spent over a day in this and cannot find a
workaround.

Anyone???