diff --git a/checkin_notes b/checkin_notes
index 302c19f26b..834543e014 100644
--- a/checkin_notes
+++ b/checkin_notes
@@ -5911,3 +5911,12 @@ Charlie 8 Sep 2012
         
     client/
         gpu_opencl.cpp
+
+Rom    10 Sept 2012
+    - client: initialize memfree and memtotal before use for Nvidia
+        cards.  It appears that the Nvidia API was only setting 32-bits
+        of the 64-bit value.  The remaining 32-bits were whatever
+        was on the stack.
+        
+    client/
+        gpu_nvidia.cpp
\ No newline at end of file
diff --git a/client/gpu_nvidia.cpp b/client/gpu_nvidia.cpp
index bd70caf364..220dea4b9b 100644
--- a/client/gpu_nvidia.cpp
+++ b/client/gpu_nvidia.cpp
@@ -382,7 +382,7 @@ void COPROC_NVIDIA::get(
 //
 void COPROC_NVIDIA::get_available_ram() {
     int retval;
-    size_t memfree, memtotal;
+    size_t memfree = 0, memtotal = 0;
     int device;
     void* ctx;