update build instructions concerning service pack 1 for MSVC 2005

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@17228 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/INSTALL.Win32 b/INSTALL.Win32
index ed55f7660a507929ceb0c9abd49e60a0f6af131b..3cc2216efd2c10d1b7e3f596db3a491de85b30c8 100644 (file)
--- a/INSTALL.Win32
+++ b/INSTALL.Win32
@@ -10,6 +10,9 @@ Compiling with MSVC 2005
 
        If you don't have MSVC 2005 installed, download and install the free
        Express edition from http://msdn.microsoft.com/vstudio/express/visualc/
+       (Do not install the service pack 1 for MSVC 2005 as this introduces a bug
+        that makes compiling LyX's Qt 4 frontend impossible, see
+        http://support.microsoft.com/?scid=kb%3Ben-us%3B930198&x=13&y=12)
 
 2      Install the Windows Platform SDK