diff --git a/Algo256/decred.cu b/Algo256/decred.cu
index 9e5c488d91..e0322cae22 100644
--- a/Algo256/decred.cu
+++ b/Algo256/decred.cu
@@ -367,9 +367,6 @@ extern "C" int scanhash_decred(int thr_id, struct work* work, uint32_t max_nonce
 	const dim3 grid((throughput + TPB-1)/(TPB));
 	const dim3 block(TPB);
 
-	if (opt_benchmark) {
-		ptarget[6] = swab32(0xff);
-	}
 	if (!init[thr_id]){
 		cudaSetDevice(dev_id);
 		if (opt_cudaschedule == -1 && gpu_threads == 1) {
@@ -431,6 +428,8 @@ extern "C" int scanhash_decred(int thr_id, struct work* work, uint32_t max_nonce
 					}
 					*pnonce = work->nonces[0];
 					return rc;
+				} else {
+					gpulog(LOG_WARNING, thr_id, "result %u for %08x does not validate on CPU!", i, h_resNonce[thr_id][i]);
 				}
 			}
 		}
diff --git a/configure.sh b/configure.sh
index d098a24e4a..c0c19770ac 100755
--- a/configure.sh
+++ b/configure.sh
@@ -9,5 +9,5 @@
 extracflags="-march=native -D_REENTRANT -falign-functions=16 -falign-jumps=16 -falign-labels=16"
 
 CUDA_CFLAGS="-O3 -lineno -Xcompiler -Wall  -D_FORCE_INLINES" \
-	./configure CXXFLAGS="-O3 $extracflags" --with-cuda=/usr/local/cuda --with-nvml=libnvidia-ml.so
+	./configure CXXFLAGS="-O3 $extracflags" --with-cuda=/usr/local/cuda-6.5 --with-nvml=libnvidia-ml.so
 
diff --git a/nvml.cpp b/nvml.cpp
index 9fb3bb25b8..fffdefc5fd 100644
--- a/nvml.cpp
+++ b/nvml.cpp
@@ -1202,7 +1202,6 @@ int nvapi_init()
 				gpulog(LOG_INFO, n, "NVAPI power limit is set to %u%%", res);
 			}
 			if (device_pstate[dev_id]) {
-				if (opt_debug) nvapi_pstateinfo(nvapi_dev_map[dev_id]);
 				// todo...
 			}
 		}