Add the FAQ about `nothing happens when I try to type my password'.

[originally from svn r1337]

diff --git a/doc/faq.but b/doc/faq.but
index 59e540f37a5acf5e88d02f9c3eb15fcc99770486..b95f74fcf9fcddb494019e59d21d28d49ff991cb 100644 (file)
--- a/doc/faq.but
+++ b/doc/faq.but
@@ -487,6 +487,17 @@ your terminal runs the risk of sending the same control sequence by
 accident, and cause unexpected changes in the window title. Don't do
 it.
 
+\S{faq-password} My keyboard stops working once PuTTY displays the
+password prompt.
+
+No, it doesn't. PuTTY just doesn't display the password you type, so
+that someone looking at your screen can't see what it is.
+
+Unlike the Windows login prompts, PuTTY doesn't display the password
+as a row of asterisks either. This is so that someone looking at
+your screen can't even tell how \e{long} your password is, which
+might be valuable information.
+
 \H{faq-secure} Security questions
 
 \S{faq-publicpc} Is it safe for me to download PuTTY and use it on a