I hear ya - the ortho I saw explained NOTHING to me, either; everything I've gleaned has been thanks to Google searches and the many folks who've blogged about their trials and tribulations with ITBS. Also, the Sock Doc. Google him up - pretty interesting approach he takes!
Maybe - you are getting equal time on both sides, but it could be each half is too long. Other things I've read to be attributed to ITBS are: shoes (too much/too little stability), leg length discrepancies, form (taking too long strides), weak glutes and/or hip abductors, weak knees and/or ankles. Yeah, it's quite the list, lol! I tried to hit all possibilities - try to run down the center of roads and stick to non-canted paths when possible, strengthened all muscles groups, stretched, rolled, switched shoes... I don't know which of those things helped, maybe all!
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