sculleywr  
Umm, go back, read some history. The split was officially made in 1054 when Rome issued the papal bull of excommunication. The reasons were this:
1. The Eastern Churches refused to accept the universal jurisdiction of the Pope. 
2. The Eastern Churches refused to accept the Filioque, an addition to both the Creed and the Scripture that made the Spirit less than the Father and Son, rather than equal to. 
The issues have, since then, grown in number. It is curious to note that 90% of Protestant groups still carry many Roman doctrines that differ from Orthodox. In many ways, Protestants are closer to Rome than they think.
GE:
http://www.christianforums.com/showthread.php?p=67226909#post67226909 
A very worthwhile post to have read indeed!
In fact, for some time now I have argued for the total close in ranks in all of Christianity from about the time the Roman Catholic church lifted its anathema on Bible societies and hijacked the lot to further its own ends.
That was a most clever and effective move which caught the Protestants so unawares they are still not seeing it hundred years and nearly a quarter century after.  
http://www.christianforums.com/showthread.php?p=67226893&posted=1#post67226893 
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