In Windows 8 LCID of Catalan Valencian (ca-ES-valencia) is 0x0803. In LibreOffice we use 0x8003, a user defined value.
One more reason for BCP 47 language tags..
Andras Timar committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=6cab11aad8fa514cd27b49f095a41fc6110b15cf fdo#59867 set correct LCID for Catalan Valencian in Windows installer The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
I've tested with LibreOffice 4.1.0 under Windows 8 with Valencian (ca-ES-valencia) locale. All works fine. LibreOffice installer looks in Valencian.
Eike Rathke committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=8d4cd0751516631bcd5c6fabf1eb07d64bb72f17 renamed ca-XV to ca-valencia and activated ca-ES-valencia, fdo#59867 related The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.