Error when rendering for Flash

I have had two projects crash when rendering an Encore CS3 project.

The info in the data collection is:

AppName: adobe encore.exe	 AppVer: 3.0.1.8	 ModName: dvacore.dll
ModVer: 2.0.0.60016	 Offset: 0008bdb3

Not enough details for anyone to even make a guess

OK... I use Premiere Pro and then encode files with an application called Cinema
Craft for m2v files. These are loaded into Encore and authored for dvd, tested
and all work fine.

With two projects, encore crashes with the error I mentioned in my first post.
Others have gone through fine but are consistent with how I always create
projects.

I do work with a Matrox RXT.100 board with PP2.0 and have seen posts that PP CS#
does not like rxt.100. This should not have any bearing on projects that are
exported into m2v or wav and then imported into Encore CS3.

Is it best NOT to export into an mgp format and let Encore transcode video?

I have tried to export my video from Premiere as a windows DV avi file and then
import this into Encore CS3 and let Encore transcode compared to importing
already transcoded footage.

When I do this, I do not have the crash experience.