Built-from-CVS Phoenix isn't responsive

I've just pulled the source for Phoenix and built it, but it doesn't 
quite work. When launched, a browser window appears but I can't make the 
window active and use it. Clicking on it has no effect--it just sits 
there. I can't select it with Alt-Tab or Expose either.

My build environment:

-- Mac G5 with 10.3.2
-- Latest developer tools from Apple (Xcode 1.1, gcc-3.3)
--Fink 6.2, ORBit and Shared Menus Framework installed per the build
   instructions

My .mozconfig file:

# sh
# Build configuration script
#
# See http://www.mozilla.org/build/unix.html for build instructions.
#

# Options for 'configure' (same as command-line options).
ac_add_options --disable-mailnews
ac_add_options --disable-composer
ac_add_options --disable-ldap
ac_add_options --enable-crypto
export MOZ_PHOENIX=1
mk_add_options MOZ_PHOENIX=1

When I launch, this is what appears in the console window:

chuck@tricky:~/src/mozilla/dist/bin$ ./MozillaFirebird

Type Manifest File: /Users/chuck/src/mozilla/dist/bin/components/xpti.dat
###!!! ASSERTION: : 'Error', file xptiInterfaceInfoManager.cpp, line 955
Break: at file xptiInterfaceInfoManager.cpp, line 955
+++ JavaScript debugging hooks installed.
nsNativeComponentLoader: autoregistering begins.
nsNativeComponentLoader: autoregistering succeeded
###!!! ASSERTION: : 'Error', file xptiInterfaceInfoManager.cpp, line 955
Break: at file xptiInterfaceInfoManager.cpp, line 955
nNCL: registering deferred (0)
WARNING: Error parsing GRE default preferences. Is this an old-style 
embedding app?, file nsPrefService.cpp, line 762
WEBSHELL+ = 1
###!!! ASSERTION: : 'Error', file xptiInterfaceInfoManager.cpp, line 955
Break: at file xptiInterfaceInfoManager.cpp, line 955
For application/x-java-vm found plugin Java Applet.plugin
./MozillaFirebird-bin: can't map file: /Library/Internet Plug-Ins/Java 
Applet.plugin ((os/kern) invalid argument)
[loaded plugin /Library/Internet Plug-Ins/Java Applet.plugin]
WARNING: NS_ENSURE_TRUE(NS_SUCCEEDED(rv)) failed, file 
nsChromeRegistry.cpp, line 3185
WARNING: NS_ENSURE_TRUE(NS_SUCCEEDED(rv)) failed, file 
nsChromeRegistry.cpp, line 3185
WEBSHELL+ = 2
Note: verifyreflow is disabled
WARNING: Failed to get a global Object Owner, file nsJSEnvironment.cpp, 
line 156
WARNING: Failed to get a global Object Owner, file nsJSEnvironment.cpp, 
line 156
WARNING: Failed to get a global Object Owner, file nsJSEnvironment.cpp, 
line 156
XP Popups: This is a nag to indicate that an inconsistent hack is being 
done on the Mac for popups.
WARNING: trying to find screen for sizeless window, using primary 
monitor, file nsScreenManagerMac.cpp, line 120
Note: styleverifytree is disabled
Note: frameverifytree is disabled
XP Popups: This is a nag to indicate that an inconsistent hack is being 
done on the Mac for popups.
WARNING: trying to find screen for sizeless window, using primary 
monitor, file nsScreenManagerMac.cpp, line 120
XP Popups: This is a nag to indicate that an inconsistent hack is being 
done on the Mac for popups.
WARNING: trying to find screen for sizeless window, using primary 
monitor, file nsScreenManagerMac.cpp, line 120
XP Popups: This is a nag to indicate that an inconsistent hack is being 
done on the Mac for popups.
WARNING: trying to find screen for sizeless window, using primary 
monitor, file nsScreenManagerMac.cpp, line 120
XP Popups: This is a nag to indicate that an inconsistent hack is being 
done on the Mac for popups.
WARNING: trying to find screen for sizeless window, using primary 
monitor, file nsScreenManagerMac.cpp, line 120
XP Popups: This is a nag to indicate that an inconsistent hack is being 
done on the Mac for popups.
WARNING: trying to find screen for sizeless window, using primary 
monitor, file nsScreenManagerMac.cpp, line 120
WEBSHELL+ = 3
CSS Error (chrome://global/skin/progressmeter.css :80.8): Unknown 
property 'align'.  Declaration dropped.
WARNING: getting z level of unregistered window, file 
nsWindowMediator.cpp, line 636
WARNING: getting z level of unregistered window, file 
nsWindowMediator.cpp, line 636
###!!! ASSERTION: Cannot support translucent elements with 
doublebuffering disabled: 'aRCSurface', file nsViewManager.cpp, line 1317
Break: at file nsViewManager.cpp, line 1317
###!!! ASSERTION: nested lock attempt: '0', file 
nsDrawingSurfaceMac.cpp, line 158
Break: at file nsDrawingSurfaceMac.cpp, line 158
###!!! ASSERTION: Cannot support translucent elements with 
doublebuffering disabled: 'aRCSurface', file nsViewManager.cpp, line 1317
Break: at file nsViewManager.cpp, line 1317
###!!! ASSERTION: nested lock attempt: '0', file 
nsDrawingSurfaceMac.cpp, line 158
Break: at file nsDrawingSurfaceMac.cpp, line 158
###!!! ASSERTION: Cannot support translucent elements with 
doublebuffering disabled: 'aRCSurface', file nsViewManager.cpp, line 1317
Break: at file nsViewManager.cpp, line 1317
###!!! ASSERTION: nested lock attempt: '0', file 
nsDrawingSurfaceMac.cpp, line 158
Break: at file nsDrawingSurfaceMac.cpp, line 158
###!!! ASSERTION: Cannot support translucent elements with 
doublebuffering disabled: 'aRCSurface', file nsViewManager.cpp, line 1317
Break: at file nsViewManager.cpp, line 1317
###!!! ASSERTION: nested lock attempt: '0', file 
nsDrawingSurfaceMac.cpp, line 158
Break: at file nsDrawingSurfaceMac.cpp, line 158
###!!! ASSERTION: Cannot support translucent elements with 
doublebuffering disabled: 'aRCSurface', file nsViewManager.cpp, line 1317
Break: at file nsViewManager.cpp, line 1317
###!!! ASSERTION: nested lock attempt: '0', file 
nsDrawingSurfaceMac.cpp, line 158
Break: at file nsDrawingSurfaceMac.cpp, line 158
###!!! ASSERTION: Cannot support translucent elements with 
doublebuffering disabled: 'aRCSurface', file nsViewManager.cpp, line 1317
Break: at file nsViewManager.cpp, line 1317
###!!! ASSERTION: nested lock attempt: '0', file 
nsDrawingSurfaceMac.cpp, line 158
Break: at file nsDrawingSurfaceMac.cpp, line 158

Any ideas what's going on?

Chuck