[msuper69]

I put this topic here because all applications will not allow me to select the duplexing option when printing so I'm of the opinion that this is either an OS X issue or an HP driver issue.

There is a dearth of information on this problem over on the HP support site (who would have believed that?). I know the printer is capable of duplexing as it worked in OS 9 and older versions of OS X. But the option is now greyed out in the print dialog.

Any ideas/opinions/comments?

Thanks!