Problems building DVD in Encore from ppro cs5

When I use Dynamic Link to transfer a ppro project into encore it transfers fine but when I try to build the dvd encore will give me a source code error and eject the dvd after the writing process has started.  When I transfer a test project that is just a couple of video clips, 10 to 20 seconds long, encore builds the dvd just fine.  If I try building a regular project in the flash format it works fine.  I have tried everything I know of.  I have notice that when I use the dymanic link to transfer a project to encore that is just a couple of clips, the timeline in encore looks normal.  When I try transferring a regular ppro project of 30 to 60 minutes the timeline in encore is pink.  Does anyone have any suggestions?  Both programs are CS5.