I was wondering if anyone had tried Microsoft Research's Multicast add-in for PPT as an alternative to DPPT? http://www.research.microsoft.com/barc/mbone/mppt.htm -- David E. Bernholdt | Email: bernholdtde at ornl.gov Oak Ridge National Laboratory | Phone: +1 (865) 574 3147 http://www.csm.ornl.gov/~bernhold/ | Fax: +1 (865) 574 0680