diff --git a/checkin_notes b/checkin_notes
index f1f34e00db..062c0707cb 100644
--- a/checkin_notes
+++ b/checkin_notes
@@ -1602,3 +1602,13 @@ David  3 Mar 2010
         gui_rpc_client_print.cpp
     client/
         boinc_cmd.cpp
+
+David  3 Mar 2010
+    - update_versions: if file is already in download dir,
+        and is the same, don't copy (it might not be writeable)
+    - client: change "result" to "task" in user-visible messages
+
+    py/Boinc/tools.py
+    client/
+        client_state.cpp
+        cs_scheduler.cpp
diff --git a/client/client_state.cpp b/client/client_state.cpp
index 8d20648411..ded9936876 100644
--- a/client/client_state.cpp
+++ b/client/client_state.cpp
@@ -1424,7 +1424,7 @@ int CLIENT_STATE::report_result_error(RESULT& res, const char* format, ...) {
     vsnprintf(err_msg, sizeof(err_msg), format, va);
     va_end(va);
 
-    sprintf(buf, "Unrecoverable error for result %s (%s)", res.name, err_msg);
+    sprintf(buf, "Unrecoverable error for task %s (%s)", res.name, err_msg);
     scheduler_op->backoff(res.project, buf);
 
     sprintf( buf, "<message>\n%s\n</message>\n", err_msg);
diff --git a/client/cs_scheduler.cpp b/client/cs_scheduler.cpp
index 9410720082..4b6904c650 100644
--- a/client/cs_scheduler.cpp
+++ b/client/cs_scheduler.cpp
@@ -848,18 +848,18 @@ int CLIENT_STATE::handle_scheduler_reply(PROJECT* project, char* scheduler_url)
     if (log_flags.sched_op_debug) {
         if (sr.results.size()) {
             msg_printf(project, MSG_INFO,
-                "[sched_op_debug] estimated total CPU job duration: %.0f seconds",
+                "[sched_op_debug] estimated total CPU task duration: %.0f seconds",
                 est_cpu_duration
             );
             if (coproc_cuda) {
                 msg_printf(project, MSG_INFO,
-                    "[sched_op_debug] estimated total NVIDIA GPU job duration: %.0f seconds",
+                    "[sched_op_debug] estimated total NVIDIA GPU task duration: %.0f seconds",
                     est_cuda_duration
                 );
             }
             if (coproc_ati) {
                 msg_printf(project, MSG_INFO,
-                    "[sched_op_debug] estimated total ATI GPU job duration: %.0f seconds",
+                    "[sched_op_debug] estimated total ATI GPU task duration: %.0f seconds",
                     est_ati_duration
                 );
             }
@@ -871,7 +871,7 @@ int CLIENT_STATE::handle_scheduler_reply(PROJECT* project, char* scheduler_url)
     for (i=0; i<sr.result_acks.size(); i++) {
         if (log_flags.sched_op_debug) {
             msg_printf(project, MSG_INFO,
-                "[sched_op_debug] handle_scheduler_reply(): got ack for result %s\n",
+                "[sched_op_debug] handle_scheduler_reply(): got ack for task %s\n",
                 sr.result_acks[i].name
             );
         }
diff --git a/py/Boinc/tools.py b/py/Boinc/tools.py
index 761aae8483..a484c2f3d6 100644
--- a/py/Boinc/tools.py
+++ b/py/Boinc/tools.py
@@ -9,10 +9,15 @@ except:
 import os, shutil, binascii, filecmp
 
 def check_immutable(src, dst):
+    """If dst exists and is the same as src, return false
+       If dst exists and differs from src, throw an exception
+       If dst doesn't exist, return true
+    """
     if not os.path.exists(dst):
-        return
+        return True
     if filecmp.cmp(src, dst) == 0:
         raise SystemExit("\nERROR: file "+src+" is different from existing file "+dst+".\nBOINC files are immutable; you must use different names for different files")
+    return False
 
 # from http://www.plope.com/software/uuidgen/view
 _urandomfd = None
@@ -119,8 +124,8 @@ def process_app_file(file, signature_text=None, quiet=False, executable=True):
     target_url = os.path.join(config.config.download_url, target_file_base)
     if not quiet:
         print "Copying %s to %s"%(source_file_base, target_path)
-    check_immutable(file, target_path)
-    shutil.copy(file, target_path)
+    if check_immutable(file, target_path):
+        shutil.copy(file, target_path)
 
     xml = '''<file_info>
     <name>%s</name>