Benq DC C500 : How do I get rid of the time/date on my pics?

I have a Benq DC C500 and I want to delete the date and time which appear on my pictures. The problem is that the manual is no longer with me, since I moved to another country and took only the camera, not the manual :(
The only way you can get to them is Menu-Set Up-Date and Time. I selected these. Then, I can, of course, change the date, change the time, change the year, change the values, but not delete the date and time for good. I even Restored everything to Default...the date still appears... I'm starting to believe I bought a camera that takes pictures only with the data on :((