I assume a pch problem; try it again with the command line option -Dmerge=1.
But there was a problem with version.cpp which is fixed now. You could also build without the IDE: devenv lyx-qt4.sln /build Release Now there is a simple batch file to rebuild a release version: call it from a build folder on the same level as trunk: ../trunk/development/cmake/build.bat -- Peter Kümmel
