README: Add warning about ssh -Y

diff --git a/README b/README
index 4e1931609b76d2e6e319b411908e819523e58eb2..0f33f48d67c3e8bbe9ed824059c86bd9e40fccba 100644 (file)
--- a/README
+++ b/README
@@ -13,7 +13,8 @@ OSDD is a simple daemon whose purpose is to wait for messages sent by other
 programs and display them on the screen using libxosd. Unlike other such
 daemons, it handles message attributes (like colors), keeps its eye on
 message timing and uses X properties to pass messages, so it works over SSH
-connections with X forwarding.
+connections with X forwarding (however, you need to use "ssh -Y" instead of
+"ssh -X" with newer versions of OpenSSH).
 
 I have developed osdd on Linux, but it should work on any recent POSIX-compliant
 system equipped with libX11 and libxosd.