What specifically are the problems they are reporting? Without knowing what problems they are reporting it is impossible to look into the cause, also IE version is very important to know.
i am still trying to get them to give me more info .. i inlckuded a link aboive to the form thats a problem .. so far to me i can only see odd coloring . but they as saying it looks messud up and the callender popouts do not work . i think it may be a spry issue as i also have the DW spry menu on the page