Blank white screen after logging in


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Hi, when i log into my hotmail account, everything appears normal for about 2 seconds and then the screen turns white and i cant access anything. When i press refresh it goes back to normal...but only for another 2 seconds and then straight back to white screen.

i am using safari on my mac and have tried resetting safari and emptying caches etc. but still no difference.

Please help!! :(