diff --git a/checkin_notes b/checkin_notes
index 282d4c01c4..293ba3c700 100644
--- a/checkin_notes
+++ b/checkin_notes
@@ -5802,3 +5802,10 @@ David  15 July 2008
 
     sched/
         sched_send.C
+
+David  15 July 2008
+    - scheduler: fix logic to not send plan-class apps to clients
+        that don't know about plan class
+
+    sched/
+        sched_send.C
diff --git a/html/inc/bossa_example3.inc b/html/inc/bossa_example3.inc
new file mode 100644
index 0000000000..eba4816751
--- /dev/null
+++ b/html/inc/bossa_example3.inc
@@ -0,0 +1,123 @@
+<?php
+
+require_once("../inc/bossa.inc");
+
+// Bossa example #3.
+// Show the user an image and ask them to click on the ellipse
+// This version uses calibration jobs.
+// We maintain the following each user:
+// nneg         # of negative calibration jobs shown
+// nneg_err     # of errors
+// npos
+// npos_err
+//
+// from these we derive
+// neg_err_rate
+// pos_err_rate
+//
+// a job is considered done if either
+// - N instances are positive and match within +- 20 pixels,
+//      and prod(pos_err_rate)<1e3
+// - 2 instances are negative
+//      and prod(neg_err_rate)<1e3
+// - there are 10 finished instances
+//   (in which case the job is marked as inconclusive)
+
+function job_show($job, $inst, $user) {
+    $info = $job->get_info($job);
+    $path = $info->path;
+    echo "
+        <h2>Find the Ellipse!</h2>
+        <form method=get action=bossa_job_finished.php>
+        Click on the center of the ellipse.
+        If you don't see one, click here:
+        <input type=submit name=submit value=None>
+        <br><br>
+        <input type=hidden name=bji value=$inst->id>
+        <input type=image name=pic src=$path>
+        </form>
+    ";
+}
+
+function job_issued($job, $inst, $user) {
+    $insts = $job->get_instances();
+    if (count($insts) > 1) {
+        $job->set_priority(0);
+    }
+}
+
+function job_finished($job, $inst) {
+    $response = null;
+    if (get_str('submit', true)) {
+        $response->have_ellipse = 0;
+    } else {
+        $response->have_ellipse = 1;
+        $response->cx = get_int('pic_x');
+        $response->cy = get_int('pic_y');
+    }
+    $inst->update_info($response);
+
+    // see if job is done
+    //
+    $insts = $job->get_finished_instances();
+    $n = count($insts);
+    echo "got $n finished jobs\n";
+    if ($n >= 10) {
+        $job->update_state(BOSSA_JOB_INCONCLUSIVE);
+        return;
+    }
+
+    $results = null;
+    foreach ($insts as $inst) {
+        $x = $inst->get_info();
+        $results[] = $x;
+    }
+    for ($i=0; $i<$n-1; $i++) {
+        $r1 = $results[$i];
+        for ($j=$i+1; $j<$n; $j++) {
+            $r2 = $results[$j];
+            if (compatible($r1, $r2)) {
+                $job->update_state(BOSSA_JOB_DONE);
+                return;
+            }
+            echo "$i and $j are not compat\n";
+        }
+    }
+}
+
+// two results are compatible if neither found an ellipse,
+// or they both did and centers are within 20 pixels
+//
+function compatible($r1, $r2) {
+    if ($r1->have_ellipse) {
+        if ($r2->have_ellipse) {
+            $dx = ($r1->cx - $r2->cx);
+            $dy = ($r1->cy - $r2->cy);
+            $dsq = $dx*$dx + $dy*$dy;
+            return ($dsq < 400);
+        } else return false;
+    } else {
+        return !$r2->have_ellipse;
+    }
+}
+
+function job_timed_out($job, $inst, $user) {
+    $job->set_priority(1);
+}
+
+function show_job_summary($job) {
+    $info = $job->get_info();
+    echo "<a href=".URL_BASE."$info->path>View image</a>";
+}
+
+function show_instance_summary($inst) {
+    $info = $inst->get_info();
+    if ($info->have_ellipse) {
+        echo "($info->cx, $info->cy)";
+    } else {
+        echo "---";
+    }
+}
+
+function show_user_summary($user) {
+}
diff --git a/sched/sched_send.C b/sched/sched_send.C
index 37be99b418..852156cb77 100644
--- a/sched/sched_send.C
+++ b/sched/sched_send.C
@@ -174,7 +174,8 @@ BEST_APP_VERSION* get_app_version(
                 reply.wreq.outdated_core = true;
                 continue;
             }
-            if (strlen(av.plan_class) && sreq.client_cap_plan_class) {
+            if (strlen(av.plan_class)) {
+                if (!sreq.client_cap_plan_class) continue;
                 if (!app_plan(sreq, av.plan_class, host_usage)) {
                     continue;
                 }