Hi VWD (Gérald?) - The option you suggest seems to be labelled "Import with Obj files" rather than "Animation by obj", but it certainly fixed the problem!

Thanks so much for the excellent, rapid support!

(Where MelnOhio is getting path names which are too long, I suggest that may be fixed by unzipping directly into the suggested C:VWD location, rather than into a directory which probably has a long string of folders which build up into a long pathname.)