diff --git a/skein.cu b/skein.cu
index 6018265..6305ad5 100644
--- a/skein.cu
+++ b/skein.cu
@@ -416,7 +416,9 @@ extern "C" int scanhash_skeincoin(int thr_id, uint32_t *pdata,
 
 	if (!init[thr_id])
 	{
+		cudaDeviceReset();
 		cudaSetDevice(device_map[thr_id]);
+
 		CUDA_SAFE_CALL(cudaMalloc(&d_hash[thr_id], 64 * throughput));
 
 		cuda_check_cpu_init(thr_id, throughput);
@@ -469,8 +471,7 @@ extern "C" int scanhash_skeincoin(int thr_id, uint32_t *pdata,
 			else {
 				applog(LOG_INFO, "GPU #%d: result for nonce $%08X does not validate on CPU!", device_map[thr_id], foundNonce);
 
-				// reinit card
-				cudaDeviceReset();
+				// reinit the card
 				init[thr_id] = false;
 			}
 		}
diff --git a/zr5.cu b/zr5.cu
index af37d70..d1eb34f 100644
--- a/zr5.cu
+++ b/zr5.cu
@@ -302,6 +302,7 @@ extern "C" int scanhash_zr5(int thr_id, uint32_t *pdata, const uint32_t *ptarget
 
 	if (!init[thr_id])
 	{
+		cudaDeviceReset();
 		cudaSetDevice(device_map[thr_id]);
 
 		// constants
@@ -406,8 +407,7 @@ extern "C" int scanhash_zr5(int thr_id, uint32_t *pdata, const uint32_t *ptarget
 			} else {
 				applog(LOG_WARNING, "GPU #%d: result for %08x does not validate on CPU!", device_map[thr_id], foundNonce);
 
-				// reinit card..
-				cudaDeviceReset();
+				// reinit the card..
 				init[thr_id] = false;
 
 				pdata[19]++;