diff --git a/checkin_notes b/checkin_notes
index 4f6edab3ea..a1281c5be1 100644
--- a/checkin_notes
+++ b/checkin_notes
@@ -6187,3 +6187,16 @@ David  16 Oct 2012
         stage_file (new)
     sched/
         credit.cpp
+
+David  17 Oct 2012
+    - scheduler: debug the above
+    - add some files missing from git repo
+
+    py/Boinc/
+        boinc_db.py
+        configxml.py
+        sched_messages.py
+        util.py
+    sched/
+        credit.cpp
+        validator.cpp
diff --git a/sched/credit.cpp b/sched/credit.cpp
index 0b1cbcbb99..1ad51b02ac 100644
--- a/sched/credit.cpp
+++ b/sched/credit.cpp
@@ -322,23 +322,42 @@ int update_av_scales(SCHED_SHMEM *ssp) {
 // This is not always ideal (the new version may be faster/slower)
 // but it's better than starting the statistics from scratch.
 //
-int hav_lookup(DB_HOST_APP_VERSION &hav, int hostid, int avid) {
+// (if anonymous platform, skip the above)
+//
+int hav_lookup(DB_HOST_APP_VERSION &hav, int hostid, int gen_avid) {
     int retval;
     char buf[256];
-    sprintf(buf, "where host_id=%d and app_version_id=%d", hostid, avid);
+    sprintf(buf, "where host_id=%d and app_version_id=%d", hostid, gen_avid);
     retval = hav.lookup(buf);
     if (retval != ERR_DB_NOT_FOUND) return retval;
 
+    // Here no HOST_APP_VERSION currently exists.
+    // If gen_avid is negative (anonymous platform) just make one
+    //
+    if (gen_avid < 0) {
+        hav.clear();
+        hav.host_id = hostid;
+        hav.app_version_id = gen_avid;
+        return hav.insert();
+    }
+
+    // otherwise try to appropriate an existing one as described above
+    //
     DB_HOST_APP_VERSION hav2, best_hav;
     DB_APP_VERSION av, av2, best_av;
 
-    retval = av.lookup_id(avid);
+    retval = av.lookup_id(gen_avid);
     if (retval) return retval;
 
+    // find the HOST_APP_VERSION w/ latest version num
+    // for this (app/platform/plan class) and appropriate it
+    //
     bool found = false;
-    sprintf(buf, "host_id=%d", hostid);
-    while (!hav2.enumerate(buf)) {
-        DB_APP_VERSION av2;
+    sprintf(buf, "where host_id=%d", hostid);
+    while (1) {
+        retval = hav2.enumerate(buf);
+        if (retval == ERR_DB_NOT_FOUND) break;
+        if (retval) return retval;
         retval = av2.lookup_id(hav2.app_version_id);
         if (retval) continue;
         if (av2.appid != av.appid) continue;
@@ -358,7 +377,7 @@ int hav_lookup(DB_HOST_APP_VERSION &hav, int hostid, int avid) {
     if (found) {
         hav = best_hav;
         char query[256], where_clause[256];
-        sprintf(query, "app_version_id=%d", avid);
+        sprintf(query, "app_version_id=%d", gen_avid);
         sprintf(where_clause,
             "host_id=%d and app_version_id=%d",
             hostid, best_av.id
@@ -368,7 +387,7 @@ int hav_lookup(DB_HOST_APP_VERSION &hav, int hostid, int avid) {
     } else {
         hav.clear();
         hav.host_id = hostid;
-        hav.app_version_id = avid;
+        hav.app_version_id = gen_avid;
         retval = hav.insert();
         if (retval) return retval;
     }
diff --git a/sched/validator.cpp b/sched/validator.cpp
index cad0169f18..85f0536ff1 100644
--- a/sched/validator.cpp
+++ b/sched/validator.cpp
@@ -261,6 +261,10 @@ int handle_wu(
                 generalized_app_version_id(result.app_version_id, result.appid)
             );
             if (retval) {
+                log_messages.printf(MSG_CRITICAL,
+                    "[RESULT#%d %s] hav_lookup returned %d\n",
+                    result.id, result.name, retval
+                );
                 hav.host_id = 0;
             }
             DB_HOST_APP_VERSION hav_orig = hav;