diff --git a/src/messages.tab b/src/messages.tab
index 2bce627b..58c13c82 100644
--- a/src/messages.tab
+++ b/src/messages.tab
@@ -492,16 +492,16 @@ static  const char *  replies[] = {
 /* 468 */       NULL,
 /* 469 */       NULL,
 /* 470 ERR_LINKCHANNEL */       "%s %s :Forwarding to another channel",
-/* 471 ERR_CHANNELISFULL, */    ":%s 471 %s %s :Cannot join channel (+l)",
+/* 471 ERR_CHANNELISFULL, */    ":%s 471 %s %s :Cannot join channel (+l) - channel is full, try again later",
 /* 472 ERR_UNKNOWNMODE  , */    ":%s 472 %s %c :is unknown mode char to me",
-/* 473 ERR_INVITEONLYCHAN, */   ":%s 473 %s %s :Cannot join channel (+i)",
-/* 474 ERR_BANNEDFROMCHAN, */   ":%s 474 %s %s :Cannot join channel (+b)",
-/* 475 ERR_BADCHANNELKEY, */    ":%s 475 %s %s :Cannot join channel (+k)",
+/* 473 ERR_INVITEONLYCHAN, */   ":%s 473 %s %s :Cannot join channel (+i) - you must be invited",
+/* 474 ERR_BANNEDFROMCHAN, */   ":%s 474 %s %s :Cannot join channel (+b) - you are banned",
+/* 475 ERR_BADCHANNELKEY, */    ":%s 475 %s %s :Cannot join channel (+k) - bad key",
 /* 476 ERR_BADCHANMASK, */	NULL,
-/* 477 ERR_NEEDREGGEDNICK */	":%s 477 %s %s :Cannot join channel (+r)",
+/* 477 ERR_NEEDREGGEDNICK */	":%s 477 %s %s :Cannot join channel (+r) - you need to be identified with services",
 /* 478 ERR_BANLISTFULL, */      ":%s 478 %s %s %s :Channel ban list is full",
 /* 479 ERR_BADCHANNAME */       "%s :Illegal channel name",
-/* 480 ERR_THROTTLE */          ":%s 480 %s %s :Cannot join channel (throttle exceeded)",
+/* 480 ERR_THROTTLE */          ":%s 480 %s %s :Cannot join channel (+j) - throttle exceeded, try again later",
 /* 481 ERR_NOPRIVILEGES, */	":Permission Denied - You're not an IRC operator",
 /* 482 ERR_CHANOPRIVSNEEDED, */ ":%s 482 %s %s :You're not channel operator",
 /* 483 ERR_CANTKILLSERVER, */   ":You can't kill a server!",