diff --git a/checkin_notes b/checkin_notes
index f76a1dd332..e21249789b 100755
--- a/checkin_notes
+++ b/checkin_notes
@@ -5339,3 +5339,14 @@ Rom    1 June 2006
         
     api/
         boinc_api.C
+
+Bruce 1 June 2006
+    - scheduler: clearer messages to use if refusing to accept a result.
+    - DB purger: make sleep interval a command line option (current 600
+                 secs is still the default value).
+
+    sched/
+        db_purge.C
+        handle_request.C
+
+.
diff --git a/sched/db_purge.C b/sched/db_purge.C
index 5eaac2bea5..a1d1e84ad6 100644
--- a/sched/db_purge.C
+++ b/sched/db_purge.C
@@ -53,6 +53,9 @@
             // being closed.  In any case the files are compressed
             // when db_purge exits on a signal.
 
+// -sleep N // when done with a pass of purging the DB, sleep
+            // for N seconds before the next pass.  Default
+            // value is 600 seconds.
 
 #include "config.h"
 #include <cstdio>
@@ -557,7 +560,7 @@ int main(int argc, char** argv) {
     int retval;
     bool asynch = false, one_pass = false;
     int i;
-
+    int sleep_sec = 600;
     check_stop_daemons();
     for (i=1; i<argc; i++) {
         if (!strcmp(argv[i], "-asynch")) {
@@ -576,6 +579,15 @@ int main(int argc, char** argv) {
             compression_type=COMPRESSION_GZIP;
         } else if (!strcmp(argv[i], "-max_wu_per_file")) {
             max_wu_per_file = atoi(argv[++i]);
+        } else if (!strcmp(argv[i], "-sleep")) {
+            sleep_sec = atoi(argv[++i]);
+            if (sleep_sec < 1 || sleep_sec > 86400) {
+                log_messages.printf(SCHED_MSG_LOG::MSG_CRITICAL,
+                    "Unreasonable value of sleep interval: %d seconds\n",
+                    sleep_sec
+                );
+                exit(1);
+            }
         } else {
             log_messages.printf(SCHED_MSG_LOG::MSG_CRITICAL,
                 "Unrecognized arg: %s\n", argv[i]
@@ -626,7 +638,7 @@ int main(int argc, char** argv) {
             log_messages.printf(SCHED_MSG_LOG::MSG_NORMAL,
             	"Sleeping....\n"
             );
-	    sleep(600);
+	    sleep(sleep_sec);
         }
     }
 
diff --git a/sched/handle_request.C b/sched/handle_request.C
index 3d4459c9b9..28b2bbc6a4 100644
--- a/sched/handle_request.C
+++ b/sched/handle_request.C
@@ -624,22 +624,22 @@ int handle_results(SCHEDULER_REQUEST& sreq, SCHEDULER_REPLY& reply) {
             switch (srip->outcome) {
                 case RESULT_OUTCOME_INIT:
                     // should never happen!
-                    dont_replace_result = "server shows no record of having sent this work";
+                    dont_replace_result = "this work was NEVER sent";
                     break;
                 case RESULT_OUTCOME_SUCCESS:
                     // don't replace a successful result!
-                    dont_replace_result = "successful result already reported for this result";
+                    dont_replace_result = "successful result ALREADY reported for this work";
                     break;
                 case RESULT_OUTCOME_COULDNT_SEND:
                     // should never happen!
-                    dont_replace_result = "server records show that this work was not sent (couldn't send)";
+                    dont_replace_result = "this work could NOT be sent";
                     break;
                 case RESULT_OUTCOME_CLIENT_ERROR:
                     // result was previously cancelled on server side.
                     // keep this new, real result ONLY if validator has
                     // not already been invoked.
                     if (srip->validate_state != VALIDATE_STATE_INIT) {
-                        dont_replace_result = "previous result reported as error, or canceled on server";
+                        dont_replace_result = "result ALREADY reported as error, or canceled on server";
                     }
                     break;
                 case RESULT_OUTCOME_NO_REPLY:
@@ -647,12 +647,12 @@ int handle_results(SCHEDULER_REQUEST& sreq, SCHEDULER_REPLY& reply) {
                     break;
                 case RESULT_OUTCOME_DIDNT_NEED:
                     // should never happen
-                    dont_replace_result = "server records show that this work was not sent (not needed)";
+                    dont_replace_result = "this work was NEVER sent (not needed)";
                     break;
                 case RESULT_OUTCOME_VALIDATE_ERROR:
                     // we already passed through the validator, so
                     // don't keep the new result
-                    dont_replace_result = "server records show that an invalid result was already returned";
+                    dont_replace_result = "an invalid result was ALREADY returned";
                     break;
                 default:
                     dont_replace_result = "server logic bug; please alert BOINC developers";
@@ -662,8 +662,8 @@ int handle_results(SCHEDULER_REQUEST& sreq, SCHEDULER_REPLY& reply) {
                 char buf[256];
                 log_messages.printf(
                     SCHED_MSG_LOG::MSG_CRITICAL,
-                    "[HOST#%d] [RESULT#%d %s] result already over [outcome=%d validate_state=%d]\n",
-                    reply.host.id, srip->id, srip->name, srip->outcome, srip->validate_state
+                    "[HOST#%d] [RESULT#%d %s] result already over [outcome=%d validate_state=%d]: %s\n",
+                    reply.host.id, srip->id, srip->name, srip->outcome, srip->validate_state, dont_replace_result
                 );
                 sprintf(buf, "Completed result %s refused: %s", srip->name, dont_replace_result);
                 USER_MESSAGE um(buf, "high");