Hi Claymore
Your miner did not run with my rig (6 cards HD 7950 - 14.7 RC3 driver).I ran debug and it's showing below,please help

C:\batcoin\XCN>NsGpuXCNMiner.exe -o stratum+tcp://xcnpool.1gh.com:7333 -u CRBpyT
sTAtDcCtgQDFgMsV2djLkiS9Mvd9 -p x -dbg 1
Main pool is xcnpool.1gh.com

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║               Claymore XCN GPU Miner  v2.1 Beta                ║
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Cards available: 6
GPU #0: name: Tahiti, 3072 MB available, 28 units
GPU #1: name: Tahiti, 3072 MB available, 28 units
GPU #2: name: Tahiti, 3072 MB available, 28 units
GPU #3: name: Tahiti, 3072 MB available, 28 units
GPU #4: name: Tahiti, 3072 MB available, 28 units
GPU #5: name: Tahiti, 3072 MB available, 28 units
Total cards: 6

Catalyst 14.7 is REQUIRED for best performance and compatibility
Make sure you defined GPU_MAX_ALLOC_PERCENT 100
Be careful with overclocking, use default clocks for first tests
Initializing, please wait...

0 m = 2
1 m = 2
2 m = 2
3 m = 2
4 m = 2
5 m = 2
POOL version