A fresh install of Ubuntu 14.04. I installed the trinity nightlies. The first thing I notice is trying to start emacs, I get the error. Undefined color: "FOREGROUND" emacs -q also gives the same error. emacs -nw works as expected. Judging from this: http://emacs.1067599.n5.nabble.com/bug-16462-emacs-does-not-start-under-KDE… I believe it's is some weird X problem. Since emacs worked fine when I edited /etc/apt/sources.lists to add the nightly repo, I'm guessing it is somehow related to installing TDE. There is an Emacs.ad file in: /opt/trinity/share/apps/tdedisplay/app-defaults/Emacs.ad xrdb -query | grep -i emacs Emacs*Background: WINDOW_BACKGROUND Emacs*Dialog*background: BACKGROUND Emacs*Dialog*foreground: FOREGROUND Emacs*Foreground: WINDOW_FOREGROUND Emacs*XlwScrollBar.Background: BACKGROUND Emacs*XlwScrollBar.Foreground: FOREGROUND Emacs*backgroundToolBarColor: BACKGROUND Emacs*bottomToolBarShadowColor: BACKGROUND Emacs*menubar*background: BACKGROUND Emacs*menubar*foreground: FOREGROUND Emacs*popup*Background: BACKGROUND Emacs*popup*Foreground: FOREGROUND Emacs*toolBarShadowThickness: 0 Emacs*topToolBarShadowColor: BACKGROUND Emacs.default.attributeBackground: WINDOW_BACKGROUND Emacs.default.attributeForeground: WINDOW_FOREGROUND Any idea how to make emacs work again? Thanks in advance. -LTH.