I have a carbon project with old style includes, like "#include <Sound.h>". I brought the project builder file and source to a X.6 machine, changed the extension, and then did the "Upgrade all targets to native" thing to get rid of the "Jam" business. In the project settings, "HEADER_SEARCH_PATHS = Carbon Headers \"Developer/Headers/FlatCarbon\" is listed, that path exists, and it does in fact contain a file called "Sound.h". Yet when I compile a source file containing the line, "#include <Sound.h>", it says "no such file or dir". In the monster "/Developer/usr/bin/gcc-4.0" command I can see it too: it says '-I"/Developer/Headers/FlatCarbon" ' in there. What gives? I could go through all the source adding #ifdefs, since my pch contains Carbon/Carbon.h, (which is all Sound.h does anyway), but I'd prefer not to... Thanks.