diff --git a/checkin_notes b/checkin_notes
index 85fca7bbbe..80e2df9085 100644
--- a/checkin_notes
+++ b/checkin_notes
@@ -6729,3 +6729,10 @@ Rom    2 Aug 2009
         main.cpp, .h
         net_stats.cpp
         sysmon_win.cpp, .h
+
+David  3 Aug 2009
+    - scheduler: add plan class for CUDA 2.3
+
+    sched/
+        sched_customize.cpp,h
+        sched_version.cpp
diff --git a/doc/boinc_news.php b/doc/boinc_news.php
index 8da0c01f10..b1a445c751 100644
--- a/doc/boinc_news.php
+++ b/doc/boinc_news.php
@@ -1,6 +1,11 @@
 <?
 
 $project_news = array(
+array("August 3, 2009",
+    "Intel (in cooperation with GridRepublic and BOINC) announces
+    <a href=http://apps.facebook.com/processors/new.php>Progress Thru Processors</a>,
+    a Facebook application that makes BOINC participation simpler and more sociable."
+),
 array("July 30, 2009",
     "<a href=http://event.twgrid.org/isgc2009/asiaathome/wiki/index.php/Main_Page#Workshop_Schedule_and_Presentations>Videos of the talks at the recent Asia@home workshop in Taiwan</a> are now online."
 ),
diff --git a/sched/sched_customize.cpp b/sched/sched_customize.cpp
index 3618f6731e..c18b62bbb2 100644
--- a/sched/sched_customize.cpp
+++ b/sched/sched_customize.cpp
@@ -95,7 +95,7 @@ int app_plan(SCHEDULER_REQUEST& sreq, char* plan_class, HOST_USAGE& hu) {
             );
         }
         return 0;
-    } else if (!strcmp(plan_class, "cuda")) {
+    } else if (strstr(plan_class, "cuda")) {
         // the following is for an app that uses a CUDA GPU
         //
         COPROC_CUDA* cp = (COPROC_CUDA*)sreq.coprocs.lookup("CUDA");
@@ -107,24 +107,45 @@ int app_plan(SCHEDULER_REQUEST& sreq, char* plan_class, HOST_USAGE& hu) {
             }
             return PLAN_REJECT_CUDA_NO_DEVICE;
         }
+
+        // check compute capability
+        //
         int v = (cp->prop.major)*100 + cp->prop.minor;
         if (v < 100) {
             if (config.debug_version_select) {
                 log_messages.printf(MSG_NORMAL,
-                    "[version] CUDA version %d < 1.0\n", v
+                    "[version] Compute capability %d < 1.0\n", v
                 );
             }
-            return PLAN_REJECT_CUDA_VERSION;
+            return PLAN_REJECT_NVIDIA_COMPUTE_CAPABILITY;
         } 
 
-        if (cp->display_driver_version && cp->display_driver_version < PLAN_CUDA_MIN_DRIVER_VERSION) {
-            if (config.debug_version_select) {
-                log_messages.printf(MSG_NORMAL,
-                    "[version] NVIDIA driver version %d < PLAN_CUDA_MIN_DRIVER_VERSION\n",
-                    cp->display_driver_version
-                );
+        // for CUDA 2.3, we need to check the CUDA RT version.
+        // Old BOINC clients report display driver version;
+        // newer ones report CUDA RT version
+        //
+        if (!strcmp(plan_class, "cuda23")) {
+            if (cp->cuda_version) {
+                if (cp->cuda_version < 2030) {
+                    return PLAN_REJECT_CUDA_VERSION;
+                }
+            } else if (cp->display_driver_version) {
+                if (cp->display_driver_version < PLAN_CUDA_MIN_DRIVER_VERSION) {
+                    return PLAN_REJECT_CUDA_VERSION;
+                }
+            } else {
+                return PLAN_REJECT_CUDA_VERSION;
+            }
+        } else {
+            if (cp->display_driver_version && cp->display_driver_version < PLAN_CUDA_MIN_DRIVER_VERSION) {
+                if (config.debug_version_select) {
+                    log_messages.printf(MSG_NORMAL,
+                        "[version] NVIDIA driver version %d < PLAN_CUDA_MIN_DRIVER_VERSION\n",
+                        cp->display_driver_version
+                    );
+                }
+                return PLAN_REJECT_NVIDIA_DRIVER_VERSION;
             }
-            return PLAN_REJECT_NVIDIA_DRIVER_VERSION;
         }
 
         if (cp->prop.dtotalGlobalMem < PLAN_CUDA_MIN_RAM) {
diff --git a/sched/sched_customize.h b/sched/sched_customize.h
index 9737994d20..0d4d539149 100644
--- a/sched/sched_customize.h
+++ b/sched/sched_customize.h
@@ -28,8 +28,10 @@
 #define PLAN_REJECT_UNKNOWN                 7
 #define PLAN_REJECT_INSUFFICIENT_CPUS       8
 #define PLAN_REJECT_CPU_FEATURE             9
+#define PLAN_REJECT_NVIDIA_COMPUTE_CAPABILITY             10
 
 #define PLAN_CUDA_MIN_DRIVER_VERSION        17700
+#define PLAN_CUDA23_MIN_DRIVER_VERSION        19038
 #define PLAN_CUDA_MIN_RAM                   (254*1024*1024)
 
 extern bool wu_is_infeasible_custom(WORKUNIT&, APP&, BEST_APP_VERSION&);
diff --git a/sched/sched_version.cpp b/sched/sched_version.cpp
index 3423dde26e..a6ee7d4646 100644
--- a/sched/sched_version.cpp
+++ b/sched/sched_version.cpp
@@ -322,10 +322,16 @@ BEST_APP_VERSION* get_app_version(WORKUNIT& wu, bool check_req) {
         switch (app_plan_reject) {
         case PLAN_REJECT_CUDA_NO_DEVICE:
             p = "Your computer has no NVIDIA GPU"; break;
-        case PLAN_REJECT_CUDA_VERSION:
+        case PLAN_REJECT_NVIDIA_COMPUTE_CAPABILITY:
             p = "Your GPU lacks the needed features"; break;
+        case PLAN_REJECT_CUDA_VERSION:
+            sprintf(buf, "NVIDIA driver version %d or later needed",
+                PLAN_CUDA23_MIN_DRIVER_VERSION
+            );
+            p = buf;
+            break;
         case PLAN_REJECT_NVIDIA_DRIVER_VERSION:
-            sprintf(buf, "driver version %d or later needed",
+            sprintf(buf, "NVIDIA driver version %d or later needed",
                 PLAN_CUDA_MIN_DRIVER_VERSION
             );
             p = buf;