OZ actually dont work with ATI video cards (Well, with somes, it work). It is why you are getting problems with OZ, WindCatcher will release soon a version of OZ compatible with ATI cards.
Concerning your question with zonelines, no, its not possible, but if WC can confirm it, maybe we could add this option to OZ (Like you, i modelise all in 3DSMax and use only OZ as a converter). Personally, for zonelines, i do it DB side.
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