Some functions in Zenkit, such as attaching files from third party apps like Dropbox and Google Drive cause windows to pop up. Please make sure that you allow pop ups for Zenkit.
Not sure how to allow pop ups? Not a problem! Each browser has a slightly different process. Here are links for the most popular browsers:
Please note: Some of these instructions explain how to block pop ups. To allow pop ups, just follow the same steps but choose 'allow' instead of 'block'.