I cannot select composite grey - Acrobat, Windows 8

Hello,

One of my co-workers is using his Windows 8 surface tablet here at work. Our printer is a Richoh colour copier. I am very familliar with acrobat and all adobe products, but not with Windows 8.

Here is the problem: Our Richoh printer is restricted to Greyscale. Normally, I just hit print, advanced settings, and change colour output to composite grey. But I cannot select any other setting than composite. The option is still there, but simply cannot be clicked.

I've tried repairing the Acrobat install from the help menu, re-installing print driver and PPD, and multiple reboot.

Does anyone here have any insight on this issue? Any help would be greatly appreciated.

Thanks!

Sean