Invalid Texture Vertex Indices

[jakewells]

Just migrated to PowerNURBS Pro 6.03. In the process, I migrated from MAX 2009 (32-bit) to MAX 2010 (64-bit).

Legacy files open fine, but when I go to render, I get the error:

Object <compressor base thread 06> has a mesh with invalid texture vertex indices - can't render.

I have no problem rendering geometry authored with PN 6.03 / MAX 2010 (x64); it's pre-existing files that are troublesome.

Any help would be appreciated. Thanks!