Some app left this behind and I can't get rid of it.

On my friends Mac this question mark is appearing in finder. And when you click on it, this message appears. I'm thinking this was left behind by some application he installed and uninstalled. I tried running Onyx but that didn't seem to get rid of it. Any other ideas?

imgur: the simple image sharer

I can't see your image here at work, but is it a question mark in the Finder window tool bar? If so, then Cmnd click on it and you can drag it off.

Does anybody else have this problem where they post things and then immediately find the solution? Turns out all he had to do was right click on the question mark and hit "remove"

Yup, you're not the first one to notice that

Did anyone else almost click "OK" in the screenshot, or was that just me?

iWhat said:

Did anyone else almost click "OK" in the screenshot, or was that just me?

Click to expand...

gets me almost every time

Wow really guys? Clicking the button in an image? Well done Anthony.