3 GTX 260 cards cudaGetDeviceCount


I have a system with 3 GTX 260 cards on a Windows 7 system with driver version 185.85 . I disabled the SLI through the nvidia control panel. When I issue the cudaGetDeviceCount call using the 2.1 API, I get a value of 1. Is this the expected result ? I was hoping that when the SLI is disabled this call will return the number of GPUs that have compute capability > 1.0

Can you please tell what I should be doing in order to enumerate all the three devices for cuda computation ?