Why can't I start a bounty?
I want to offer a bounty on my question on Stack Overflow.
However, I can't seem to do so. I encounter a problem similar to the one described in this question: Why can't I start a bounty?
I follow the same procedure as in the pictures shown there.
My OS is MacOS 10.7 and my browser is Opera 12.01 (same for Safari 6.0).
Please, help me to find the reason and start the bounty.