Swiftkit loading screen pops out?

How do I make it so when I press play runescape it does not have a seperate thing popping out of the screen? This always causes it to crash. This is swiftkit for mac btw.

 

I've ran across the same problem on my Mac, but my solution was simply reverting to the Official RS Client. Unfortunately I don't have the answer, but you can post in the official SwfitKit Mac forum at Zybez as a means of a last resort.

 

On the mac, you cannot. It's very glitchy, and I've stopped using it for that exact reason. Looks like we need to stick to the RS client.

 

Well on my new mac the swiftkit on their does not do this pop out thing. Why it does not i'm clueless.