Still can't get cgminer to use my Geforce GTS 250

I have been struggling with this for a few weeks now.  I still can't get cgminer to use my GPU.  The programs's -n argument does list the GPU, but it can't use it for some reason.  I figured I would post here and see if someone else has the same problem.


# cgminer -n
 [2013-05-22 19:40:30] CL Platform 0 vendor: NVIDIA Corporation                  
 [2013-05-22 19:40:30] CL Platform 0 name: NVIDIA CUDA                  
 [2013-05-22 19:40:30] CL Platform 0 version: OpenCL 1.1 CUDA 4.2.1                  
 [2013-05-22 19:40:30] Platform 0 devices: 1                  
 [2013-05-22 19:40:30] 0 GeForce GTS 250                  
 [2013-05-22 19:40:30] 1 GPU devices max detected

# cgminer output


 [2013-05-22 19:39:19] Started cgminer 2.7.4
 [2013-05-22 19:39:19] Started cgminer 2.7.4
 [2013-05-22 19:39:20] Probing for an alive pool
 [2013-05-22 19:39:20] Long-polling activated for **********************************
 [2013-05-22 19:39:20] Error -2: Creating Context. (clCreateContextFromType)
 [2013-05-22 19:39:20] Failed to init GPU thread 0, disabling device 0
 [2013-05-22 19:39:20] Restarting the GPU from the menu will not fix this.
 [2013-05-22 19:39:20] Try restarting cgminer.
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