However, pressing the numlock key, or on this keyboard it's labeled "clear", still causes the behavior described above. So I think there's still a bug.
A workaround I found was to enable the keypad numbers by default by going to System > Preferences > Keyboard > (Layouts Tab) > Layout Options... > Miscellaneous Compatibility Options, and checking "Default numeric keys" and "Numeric keypad keys work as with Mac."
Mario,
Thank you! numlockx was my problem. I forgot that I had installed it months ago. Found this forum post showing how to change the default F key behavior http:// ubuntuforums. org/showpost. php?p=3518372& postcount= 5
However, pressing the numlock key, or on this keyboard it's labeled "clear", still causes the behavior described above. So I think there's still a bug.
A workaround I found was to enable the keypad numbers by default by going to System > Preferences > Keyboard > (Layouts Tab) > Layout Options... > Miscellaneous Compatibility Options, and checking "Default numeric keys" and "Numeric keypad keys work as with Mac."