Max material editor-missing gamma slider?

[Darlene_O]

Using Max 2013 and Vray 2.40.03. In the past I have always adjusted the gamma setting in the "Processing" area of the HDRs properties. I'm working in a new office on a new computer, and the gamma settings aren't where they usually are for me. Am I missing something obvious? Please help, it's driving me nuts!

[grantwarwick]

Color space: Inverse Gamma...

[Darlene_O]

Thanks very much!