I am having this same problem with XT as well and it's very frustrating. I've cleaned with "Clean my Mac 3" which has a variety of features including freeing up RAM, repaired disK permissions, close all other windows and applications, turned off email push notifications. No matter what I do I come back to the ball of death and totally frozen. Running it on a macbook pro with 16g of RAM. This program should not be an issue. HELP