Ed,
I use the LJ-III drivers because that's what I have here at the office and I never have a problem with it. This client isn't doing much other output than what my VFP5 app is doing for them so they aren't losing much printer functionality. I might give the HP4 drivers a try next time I'm down at the site.
>I don't like the 5 drivers any better - we're using the IIIsi drivers in place of the 5si drivers; you give up very little in terms of capabilities doing this, especially if you're using them as PostScript printers. And I'd be very careful of drivers released by HP. HP has a lousy track record in my experience with printer drivers, causing trouble with lots of apps (not just VFP.) It's usually safer to take the latest HP driver that Microsoft is distributing if at all possible.