I've been anxiously awaiting an answer to your question because I'm having the same problem. Have you been able to figure this out since you posted? Please do tell if you have!
I found something in the forums but I didn't understand the last part of the answer. http://http://forums.adobe.com/message/2364288#2364288
This seems like it would be such a simple thing to do but has been the most frustrating thing yet!
Ah! Well, at least that's a start. Thanks for the link!
I have not yet found a resolution for this issue, though I did try to follow what was outlined in that other forum thread without success. I posted on that thread asking about it, so if I come up with any answers based on that, I'll be sure to come back here and post the answer.
Perhaps between the two fo us we could figure this out. I found this link http://http://www.acrobatusers.com/forums/aucbb/viewtopic.php?id=22271 and was about to give up on this but the last post suggested to check out this link http://http://forums.adobe.com/message/2339996#2339996, they say it so simple.
I am a newbie and don't quite understand the information given. Do you get it, Ginny?