>Refered to the FBII Reference Manual and found the explanation and solution
>to my problem.  Since I had used FB's custom controls, I had to compile my
>application with "_IncludeCDef" in the compile line.  What's funny is that
>it used to work without it on my old 68k system and on my PowerPc before I
>updated it to OS8.  Out of curiosity, anyone know why?

The CDEF in question is included in the FB application itself, and copied 
to your app "upon request" (the _IncludeCDef line). It'll _always_ find 
it when running from within FB, but _shouldn't_ have ever found it in a 
compiled app. However, if somehow you managed at some point to get the 
System file at the "top of your resource list", while running uncompiled, 
crashed, then compiled without rebooting, it's theoretically possible 
that FB could have "missed" and installed the CDEF into your System. Or, 
of course, it could have been done with ResEdit. Or by some other utility 
that went awry. There's just too many possibilities, but the only way to 
verify anything would be to look at your old System files and see if the 
CDEF somehow managed to get itself there.

Bill