Problems creating a pdf from Indesign document containing eps files

[Marcus_Bryce@adobeforums.com]

In the course of my work I frequently import illustrator and eps image files into my indesign documents. When I export as pdf I sometimes lose most of the image except for the bottom-most black (outline) layer. There doesn't seem to be any pattern to this happening, and the same thing has happened when I've exported the indesign document as an eps and created the pdf using distiller, I've also tried placing the affected objects on seperate layers. I can work around the problem by making the vector art quite large in illustrator and then exporting it from there as a photoshop file, but this is creating large, unneccesary files on my hard drive.
I'm using InDesign 2 and Illustrator 8.0, is there a PostScript language discrepancy?

[Bob_Levine]

Are you losing white artwork that's set to overprint in AI?

If not, what happens if you simply place the native AI file?

Bob