After all this time, I have found a work-around. I am posting this here for anyone who may also have this problem. When in agenda view, using the drop-down menu, in View, enable the sidebar, then enable calendar. You should now see a text-style calender in a sidebar next to the agenda. Now use the drop-down menu to select "Month" (or which ever option you wish at this point) and the colorized version of the monthly calender should have replaced the agenda. Unselect sidebar, and the text-style calender will disapear, leaving only Month view. I find you have to do this every time you reboot the tablet.