I'm having a recurring problem of an immediate crash when inserting Autocad 2008 (and R14) files into a simple Archicad 11 build 1086 file. Any suggestions. This is a SERIOUS problem.
Don H
AFAIK AC11 does not support AutoCAD 2008 files. Try to get them into 2007 format and see if that works. It may be that r14 is too old. (Almost ten years now isn't it?)
Maybe some entities aren't translating successfully. Try placing it as a drawing (rather than xREF), opening it in a separate session of ArchiCAD, saving as DWF, or try different translator settings.