🚀 go-pugleaf

Help, I need help with a MacApp Problem:
 
Earlier this year I developed a series of XCMDs for Hypercard that did digital
audio conversions, ie sample rate converters and so forth.  We built a
Hypercard stack as a front end and shipped the product.  Now I'm developing an
application in MacApp that launches these XCMDs as well as a few others.
Moving these XCMDs to MacApp wasn't entirely painless, but I have eventually
gotton all of them to work exept one.  This particular XCMD consists of posing
a Custom SFGetFile dialog, very similar to the one in THINK C 5.0 that lets the
user "Get" multiple files in one "Get".  Keep in mind this XCMD works
beautifully in Hypercard.  From my MacApp application however it launches fine
the first time it is fired off, but if you fire it off again within the same
run of the application it causes a bus error in "MDEF + 014". The Custom
SFGetFile dialog my XCMD poses does have a pop-up menu in it the allows the
user to filter the type of files they are looking at.  The DITL for the
SFGetFile has a control for the Pop-up.  I have used both a Public domain
Pop-up CDEF and Apple's System 7 Pop-up CDEF and got the same problem.  On
entry to the XCMD the cntl resource associates an empty menu resources of ID
128 with the CDEF.  On exit, I call release resource on the MenuHandle, because
the next time the XCMD is launched I might put different Items into the Pop-up
menu.  Again this works fine in hypercard.  What is MacApp doing to what seems
to be my resources during execution of my app that hypercard wasn't doing???
I've tried many senarios of the above trying to isolate the problem, but have
had no luck.  Any help would be most appreciated.
 
Jay Bartot @Optimage interactive services