There is a PROBLEM with the ADOBE, NVIDIA, OPENGL, WINDOWS7 driver.
If you open a gray scale picture in Windows7 Photoshop, it will appear to be purple.
I tried GeForce drivers 182, 185, 190, and MicroSoft Win7 reference drivers.
I have also tried color profiles, sRGB, AdobeRGB 1998, Acer...