everytime I log into Outlook it flashes to a blank page this is really hurting my buisness and am very disappointed as this is not a better system!

this is so infuriating as i am on a brand new mac and my hotmail worked fine there was not need to automatically upgrade me to a horrible email system that has cost me tons of money and loss of jobs. I am very unhappy with this service and need help fixing this problem asap so I can go on with my business it is not feasible for me to change address now as I am applying for numerous jobs and this is ridiculous. MY NAN ALWAYS SAID IF IT AINT BROKE DONT FIX IT...HOTMAIL WAS SO MUCH BETTER THAN THIS ****!