Hi,

I am getting the following error while using backgrounds with enumeration.
(Context ver: 2008.07.10 09:58 MKIV,  LuaTeX, Version 
snapshot-0.28.0-2008070423)

The error depends on the frame occuring at a particular location on the 
page, so the example is not so minimal. The error is

! Missing = inserted for \ifdim.
<to be read again>
                    p
\textbackgroundskip ->-4.5255pt p
                                  lus -1.13136pt minus -1.13136pt
\dodostoptextbackground ...im \textbackgroundskip
                                                   >\zeropoint \kern 
\scratch...
\stoptextbackground ->\dodostoptextbackground
                                               \carryoverpar \egroup
\@@stopdescription ...scriptionparameter \c!after
                                                   \egroup \def 
\currentdescr...
l.352 \stopcorollary

?
! Illegal unit of measure (pt inserted).
<to be read again>
                    p
<to be read again> p
                     l
\textbackgroundskip ->-4.5255pt pl
                                   us -1.13136pt minus -1.13136pt
\dodostoptextbackground ...im \textbackgroundskip
                                                   >\zeropoint \kern 
\scratch...
\stoptextbackground ->\dodostoptextbackground
                                               \carryoverpar \egroup
\@@stopdescription ...scriptionparameter \c!after
                                                   \egroup \def 
\currentdescr...
l.352 \stopcorollary


I do not know if it is an error in my setup, or some bug in context. I 
cannot check it on garden, since live is broken at the moment.

Aditya