I downloaded 2.6.4 from the windows site and loaded it. All went well and it works. I then downloaded the english only help file 2.4.0. That was all that was available from http://gimp-win.sourceforge.net/stable.html.
The install of the help appeared to go well. Even when in gimp and edit, preferences, help system- it says "there's a local installation of the user manual". I have selected use locally installed copy, show tool tips, show help button.
When I click on help the hour glass shows for a few seconds, but never do get a help screen. Tool tips don't show on starting of gimp, but do show if I use pull down under help.
Gimp seems to know help is there, but appears it can't make use of it. Could it be that help 2.4.0 won't work with 2.4.6?
I can always go on internet for help. BTW context help will show the ? but when I click on a tool I get the hour glass then nothing.