I think some of the problem was indeed the way in which my weights were defined in the [Fonts} section, so well spotted Thomas. Glad to see that your sage advice has travelled well from your days at alt.txt.frame. FYI, the settings listed below do the job, although my FM now crashes when I quit. I don't know if this is from the aliases or something else.
What would really put on the final polish on cross-platform document transparency is if the...
SuppressFontAlertOnOpen=On
...setting in the maker.ini file actually worked - like it did in FM 5.5.6. But alas, the nasty pop-up message (which tells you that FM is going to substitute some fonts) does not get suppressed, and so destroys any chance of doing a simple update on the book. You have to open, save, and shut each file in the book first (with "Remember missing font names" turned off). My books have hundreds of files. Damned shame, that. Maybe the folks at Adobe could try restoring this trivial little piece of programming code for those of use for whom it is a major issue.
[Fonts]
Angles=Regular, Kursiv, Slanted, Oblique, Italic, Obliqued, Inclined
Variations=UltraCompressed, ExtraCompressed, Compressed, Condensed, UltraCondensed, Narrow, Regular, Wide, Poster, Expanded, Black, EL, L, R, M, B, H, 45, 46, 55, 56, 65, 75
Weights=Thin 100, ExtraLight 200, SemiLight 250, Light 300, Book 300, Regular 400, Medium 500, SemiBold 600, DemiBold 600, Bold 700, Bolded 700, ExtraBold 800, Heavy 900
[WindowsToFrameFontAliases]
Adobe Garamond Pro,*,Regular=Adobe Garamond Pro,*,Regular,*
Adobe Garamond Pro,*,Bold=Adobe Garamond Pro,*,SemiBold,*
Adobe Garamond Pro Bold,*,Bold=Adobe Garamond Pro,*,Bold,*
; No alias necessary for Book Antiqua, which is the same on both platforms
; Book Antiqua,*,*=Book Antiqua,*,*,*
; Changing Bookman Old Style also requires changing SemiBold to Demibold.
Bookman Old Style,*,Light=Bookman,*,Light,*
Bookman Old Style,*,SemiBold=Bookman,*,DemiBold,*
; No alias necessary for Century Schoolbook, which is the same on both platforms
; Century Schoolbook, *, *=Century Schoolbook, *, *, *
Courier,Italic,*=Courier,Oblique,*,Regular
Courier Std,Italic,*=Courier Std,Oblique,*,Regular
Helvetica,Italic,*=Helvetica,Oblique,*,*
; I dont actually have the HelveticaNarrow font, so I cant test the next two.
HelveticaNarrow,Regular,*=Helvetica,Regular,*,Narrow
HelveticaNarrow,Italic,*=Helvetica,Oblique,*,Narrow
Arial CYR,Regular,*=Helvetica Cyrillic,Regular,*,Regular
Arial CYR,Italic,*=Helvetica Cyrillic,Inclined,*,Regular
Times New Roman CYR,Regular,*=Times Ten Cyrillic,Regular,*,Regular
Times New Roman CYR,Italic,*=Times Ten Cyrillic,Inclined,*,Regular
Letter Gothic Std,Regular,*=Letter Gothic Std,Regular,*,Regular
Letter Gothic Std,Italic,*=Letter Gothic Std,Slanted,*,Regular
Minion Pro SmBd,*,SemiBold=Minion Pro,*,SemiBold,Regular
News Gothic Std,Regular,*=News Gothic Std,Regular,*,*
News Gothic Std,Italic,*=News Gothic Std,Oblique,*,*
Palatino Linotype,*,*=Palatino,*,*,*
; No alias necessary for Times, which is the same on both platforms
;Times,*,*=Times,*,*,*
; Chinese aliases when using English Regional settings
SimSun,Regular,Regular=STSong,Regular,Light,Regular
SimHei,Regular,*=STHeiti,Regular,*,Regular
; Asian font aliases. On UNIX the EL,L,R,M,B,H attribute appears in the
; Variation instead of the Name.
Adobe Fangsong Std R,*,*=Adobe Fangsong Std,*,*,R
Adobe Kaiti Std R,*,*=Adobe Kaiti Std,*,*,R
Adobe Ming Std L,*,Light=Adobe Ming Std,*,Regular,L
Adobe Myungjo Std M,*,*=Adobe Myungjo Std,*,*,M
Adobe Song Std L,*,Light=Adobe Song Std,*,Regular,L
Kozuka Gothic Pro EL,*,SemiLight=Kozuka Gothic Pro,*,Regular,EL
Kozuka Gothic Pro L,*,Light=Kozuka Gothic Pro,*,Regular,L
Kozuka Gothic Pro R,*,Regular=Kozuka Gothic Pro,*,Regular,R
Kozuka Gothic Pro M,*,Medium=Kozuka Gothic Pro,*,Regular,M
Kozuka Gothic Pro B,*,Bold=Kozuka Gothic Pro,*,Regular,B
Kozuka Gothic Pro H,*,Heavy=Kozuka Gothic Pro,*,Regular,H
Kozuka Mincho Pro EL,*,SemiLight=Kozuka Mincho Pro,*,Regular,EL
Kozuka Mincho Pro L,*,Light=Kozuka Mincho Pro,*,Regular,L
Kozuka Mincho Pro R,*,Regular=Kozuka Mincho Pro,*,Regular,R
Kozuka Mincho Pro M,*,Medium=Kozuka Mincho Pro,*,Regular,M
Kozuka Mincho Pro B,*,Bold=Kozuka Mincho Pro,*,Regular,B
Kozuka Mincho Pro H,*,Heavy=Kozuka Mincho Pro,*,Regular,H
RotisSemiSans Light,Regular,Regular=Rotis Semi Sans,Regular,Light,45
RotisSemiSans Light,Italic,Regular=Rotis Semi Sans,Italic,Light,46
RotisSemiSans,Regular,Regular=Rotis Semi Sans,Regular,Regular,55
RotisSemiSans,Italic,Regular=Rotis Semi Sans,Italic,Regular,56
RotisSemiSans,Regular,Bold=Rotis Semi Sans,Regular,Bold,65
RotisSemiSans ExtraBold,Regular,Regular=Rotis Semi Sans,Regular,ExtraBold,75
(End of settings)