diff --git a/checkin_notes b/checkin_notes
index e29b358863..6372b35942 100644
--- a/checkin_notes
+++ b/checkin_notes
@@ -2719,3 +2719,9 @@ David  29 Apr 2011
     client/
         gui_rpc_client_ops.cpp
         gui_rpc_client.cpp
+
+Charlie 29 Apr 2011
+    - MGR: Fix a few bugs in Exclusive Apps pane of Computing Prefs dialog.
+
+    lib/
+        cc_config.cpp
diff --git a/lib/cc_config.cpp b/lib/cc_config.cpp
index 8af90f2f3d..36aa6020d0 100644
--- a/lib/cc_config.cpp
+++ b/lib/cc_config.cpp
@@ -188,6 +188,7 @@ void CONFIG::defaults() {
     alt_platforms.clear();
     client_version_check_url = "http://boinc.berkeley.edu/download.php?xml=1";
     client_download_url = "http://boinc.berkeley.edu/download.php";
+    config_coprocs.n_rsc = 0;
     disallow_attach = false;
     dont_check_file_sizes = false;
     dont_contact_ref_site = false;
@@ -414,7 +415,7 @@ int CONFIG::write(MIOFILE& out, LOG_FLAGS& log_flags) {
     
     for (i=0; i<(unsigned int)config_coprocs.n_rsc; ++i) {
         out.printf(
-            "        <coproc>"
+            "        <coproc>\n"
             "            <type>%s</type>\n"
             "            <count>%d</count>\n"
             "            <peak_flops>%f</peak_flops>\n"
@@ -431,7 +432,7 @@ int CONFIG::write(MIOFILE& out, LOG_FLAGS& log_flags) {
         }
         out.printf(
             "</device_nums>\n"
-            "        </coproc>"
+            "        </coproc>\n"
         );
     }
     
@@ -453,7 +454,7 @@ int CONFIG::write(MIOFILE& out, LOG_FLAGS& log_flags) {
         );
     }
             
-    for (i=0; i<exclusive_apps.size(); ++i) {
+    for (i=0; i<exclusive_gpu_apps.size(); ++i) {
         out.printf(
             "        <exclusive_gpu_app>%s</exclusive_gpu_app>\n",
             exclusive_gpu_apps[i].c_str()