[ubuntu] Can't select "okay" while selecting printer

view full story

http://ubuntuforums.org – I am trying to install my Canon MP560, but, when I select the printer from the Windows Printer list, I am still unable to hit okay. What is the problem here? Thanks! Screen shot attached. Attached Images Screenshot at 2012-01-21 14:41:15.jpg (20.5 KB) (Hardware)