Cuda question

I have a PC running Windows 10, i5 quad core, 8GB memory with a GTX 570 1.2GB card with 480 Cuda cores. In blender, in User Preferences>System, it recognizes my GTX 570, and I have selected CUDA for the compute engine, but there’s no difference in rendering speed, it seems to still using the CPU to compute rather than the graphics card. Anyone have any idea what I’m missing?

Duh, nevermind, found it 30 seconds after posting…lol, forgot to change it in the render panel to GPU compute.