Hi developers, I don't know where to issue a bug and don't find a bug report link in ConTeXt Garden, so I just send this mail. Here is the minimal example file to reproduce the bug. %============================================= \definetextbackground [underline] [location=paragraph, alternative=1, background=, frame=off] \definedescription[covertitle] [location=left] \starttext \startcovertitle{English Title:} \underline{Cost Based Rake Strength and Application: An Oriental View} \stopcovertitle \stoptext %============================================== The head of description will be a line height higher than the text part, if the \underline presents. If the \underline is not used, the output will be ok. I'm using TeXLive 2008 with ConTeXt rsyncd to current version (seemingly updated to 2008.12.25). And luatex is 0.35 snapshot. Best wishes, Wei-Wei