Index: DOCS/xml/en/ports.xml
===================================================================
RCS file: /cvsroot/mplayer/main/DOCS/xml/en/ports.xml,v
retrieving revision 1.70
diff -u -r1.70 ports.xml
--- DOCS/xml/en/ports.xml	13 Sep 2005 11:04:20 -0000	1.70
+++ DOCS/xml/en/ports.xml	30 Nov 2005 14:59:23 -0000
@@ -490,6 +490,9 @@
   running <application>MPlayer</application>, but only on some systems (NT4).
   Try making them writable if you have problems.</para>
 
+<para>If you have a P4 and are experiencing a crash using the realplayer codecs
+  you may need to disable hyperthreading support.</para>
+
 <para>You can play VCDs by playing the <filename>.DAT</filename> or <filename>.MPG</filename> files
   that Windows exposes on VCDs. It works like this (adjust for the drive letter
   of your CD-ROM):</para>