Pleas upload the new stable release:
http://alice.fmi.uni-passau.de/~seidl/cygwin/release/TeXmacs/TeXmacs-1.0.4-3-src.tar.bz2 http://alice.fmi.uni-passau.de/~seidl/cygwin/release/TeXmacs/TeXmacs-1.0.4-3.tar.bz2 http://alice.fmi.uni-passau.de/~seidl/cygwin/release/TeXmacs/setup.hint
and remove the old 1.0.3.3 version.
I've cared for the "libICE.dll not found" problem by adding XFree86-lib-compat as a dependent package for the time being, until ghostscript is rebuilt against the new xorg-x11-* packages.
Andreas -- http://www.fmi.uni-passau.de/~seidl