I downloaded the program the other day & Chroma keyed a short vid, rendered it, played it in wmv & it worked great but after that it all works good till I rendered it, it plays but with no transparency.  I uninstalled Ur program & reinstalled Ur lastest ver. but after rendering & play back still no transparency, I think it is my Pc, I'm running [ Vista Home Premium SP2 ].  Do U have any ideas what it might be….????

Jay

ps Nice Program, wish I was smart enough to make something like that…………..