Using Vegas 9.0c (32 bit) with 1080 60i footage, interviewee shot against green screen. Chromakey works great---I also typically apply a Track Motion 2D Shadow to the interviewee. This drop shadow shows up fine in all viewing modes except Best (Full). When I render it to various formats (like DV) the drop shadow appears, but rendering it to a 1080 60i AVI it disappears.

Can anyone duplicate/explicate?