+\wxheading{Remark/Warning}
+
+By default, Read uses an internal asynchronous manager: it will send data when
+the socket requests them. It is particularly interesting when you enter a long
+data transfer (e.g. a big file, an image, ...). But it is also buggy when you
+simply discuss with the peer using user data. In this case, wxSocket prepares
+itself to send data (Write wait for them to be sent) and during a GUI refresh
+the user enters new data, which involves a new Read call though the previous
+isn't finished. Well, in most cases it can work but it might fail too.
+So I advise you to use the SPEED flag, which disables the asynchronous manager,
+when you just want to discuss with the peer.
+
+This remark is also valid for all IO call.
+