found this on the sony boards qouted from there heh
There is a bug in the custom UI with the merger of Help Windows and CS Windows. The bug is duplicate entries exist in both, and so it stops loading and forces default, even though the problem isn't with the custom.
There are two fixes for this problem:
If you have a custom EQUI.XML file, delete or comment out the line that referrences HelpWnd.
If you don't have a custom EQUI (or not comfortable with editing it by hand, download THIS file and place it in your custom UI. It is the help window with the duplicate entries removed.