Internal Software error %0 ref=Hpgc time 00:01:56:19

Created a slideshow timeline in encore using the slideshow function. When
building I get the above error. he time reference refers to the middle of a
particular slide.

I have tried the following:
1. Removing the audio
2. Removing the slide that stradles this time code
3. Removing the pan and zoom effect
4. Removing the transition

but I still get exactly the same error at exactly the same time code. Any ideas?
Originally rendered this in Premier CS3 and then imported the mpgs into Encore,
but the dot crawl was appaling on the resulting dvd, so through I would try
doing directly in encore.