window decorator not working properly

The window decorator is not the same for emacs23 as it is for all the other programs, and it used to be. I don't know what program isn't being called up, but it's what makes the menus go up to the top bar.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: emacs23 23.4+1-3ubuntu1
ProcVersionSignature: Ubuntu 3.4.0-3.8-generic 3.4.0
Uname: Linux 3.4.0-3-generic i686
ApportVersion: 2.1.1-0ubuntu1
Architecture: i386
CheckboxSubmission: 7ff03e7bc08d6fa0280a0998c43f449f
CheckboxSystem: bb422ca46d02494cdbc459927a98bc2f
Date: Wed May 30 07:14:06 2012
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha i386 (20120528)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: emacs23
UpgradeStatus: No upgrade log present (probably fresh install)