Mike et al,
I'm quite familliar with layer links. In fact it was in a file with multiple layer links that I discovered the masking phenomenon. Here's the situation: a table is modeled on two layers, the base on one, the top on another. I want a sheet showing both the complete table and just the base. I set up two layers for the purpose of linking, one links both the top and base, one just the base. By making only these two layers visible, adjusting the scale and unlocking/moving the links I can show both models simultaneously. This works just fine when rendered solid, or when only the bottom layer is raster rendered. But raster render both and only the top (as set in the Layers dialog) is visible. It seems that raster rendering paints a white background even where there are no objects, thus obscuring any visible layers below. Since you cannot link a link, I am hoping there is another solution. Thanks.
Regards,
Geoff