Make sure to also send the ltypeshp.shx that ios generated with the DWG to the client. Just the DWG will not work, as the linetype definitions are not in the file. The same goes if you have bitmap or PDF drawings or logos placed - if you don't send them too, they will not show.
Alternatively, define the sketchy lines in the DWG Translator, and map them from ArchiCAD.
The prerequisite, of course, is to have the same setup on both ends, otherwise something will always be missing.
Djordje
ArchiCAD since 4.55 ... 1995
HP Omen