and HIGHLY unreliable for real-time trading. You should feel highly blessed that you are using non-Windows.
If you're a Mac user looking for a new front end to your IB account, you should check out MotiveWave. https://www.motivewave.com/home.htm
Another option for Mac users is the thinkorswim platform from TD Ameritrade, but that requires a TDA brokerage account. https://www.thinkorswim.com/t/index.html#!/trading
Yeah, I like thinkorswim, but their commissions are high. I do use their charts though. Their margin for the ES is even higher than IB's as well.