2 boxes named the same thing? heh I wouldn't recommend that. If they are compatible, would simply use 1 box for both. if they are not, would rename one. What kind of error do you get btw? Nothing happen, page crash, runs with error?
i thought 2 boxes WAS the default behavior... how else can a customer enter both a gift code and a coupon?
or did you mean that there should be 2 boxes with different names?
do you have a working site i can check?
thanks,