Canon Printer Drivers v2.9 for OS X - Grayscale Printing not possible?

I have the MX868 printer scanner. I downloaded and installed the Apple Canon Printer Drivers for the MX860 series which allows me to print but noticed that the driver does not allow me to print in B&W / greyscale. I tried to access 'Quality & Media' options from the driver pop-up menu but these options do not exist with new driver (it simply says grayscale not enabled)

I will try and install the updated canon software for OS X 10.7 (Lion) from canon support site to see if original driver resolves the problem

PIXMA MX868 Support Site (HK)

http://support-hk.canon-asia.com/P/search?model=PIXMA+MX868&menu=download&filter =0&tagname=g_os&g_os=Mac%20OS%20X%20v10%2E7

MP Navigator EX Ver. 2.1.3 (Mac OS X 10.2/10.3/10.4/10.5/10.6/10.7) - Download Link

http://support-hk.canon-asia.com/contents/HK/EN/0200082502.html

Canon US instructions for gray scale:

http://kbsupport.cusa.canon.com/system/selfservice.controller?CONFIGURATION=1011 &PARTITION_ID=1&secureFlag=false&TIMEZONE_OFFSET=&CMD=VIEW_ARTICLE&ARTICLE_ID=17 874