First Attempt at Mining - CUDA error

Hi Everyone,
Wood rig built - 2 GPUs - 4 more one the way -running Win10
Browsed out to the Claymore folder and launched the start_only_eth batch file.

Things progresses well and then these two errors:
CUDA error - cannot allocate big buffer for DAG. Check readme.txt for possible solutions.
GPU 2, CUDA error 11 - cannot write buffer for DAG

MORE DETAILS BELOW.

How to troubleshoot and fix?

Thanks for your help.

ETH: Stratum - Connected (eth-eu1.nanopool.org:9999)
ETH: Authorized
Setting DAG epoch #110...
Setting DAG epoch #110 for GPU #1
Setting DAG epoch #110 for GPU #2
Setting DAG epoch #110 for GPU #0
Create GPU buffer for GPU #0
Create GPU buffer for GPU #2
Create GPU buffer for GPU #1
CUDA error - cannot allocate big buffer for DAG. Check readme.txt for possible solutions.
ETH: 03/10/17-07:10:32 - New job from eth-eu1.nanopool.org:9999
ETH - Total Speed: 0.000 Mh/s, Total Shares: 0, Rejected: 0, Time: 00:00
ETH: GPU0 0.000 Mh/s, GPU1 0.000 Mh/s, GPU2 0.000 Mh/s
Setting DAG epoch #110 for GPU #2
GPU 2, CUDA error 11 - cannot write buffer for DAG
Quit...
GPU 1 DAG creation time - 4806 ms
Setting DAG epoch #110 for GPU #1 done
GPU 0 DAG creation time - 4818 ms
Setting DAG epoch #110 for GPU #0 done

C:\CDCOPIES\Ethereum\Claymore>pause
Press any key to continue . . .