compatibility ie issue

hi i have the sportal and was working fine, in my mac in chrome it display ok the top menu but under windows or with firefox the top menu is display in the far right, if i activated the compatibility button on ie in shows ok, so i know is an issue of compatibility but i dont know why, the live demo of the sportal is display ok so please help, thanks and best regards

www.estudiaenvancouver.com

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