I perhaps should have mentioned that I have given up on auctions and only use Buy It Now. So the thoughts of member_8880 at least confirm my experience, and I can say it is not my imagination, browser settings or cookies.
Vickie, I NEVER see the custom button. Does not matter how I save, open, change to or from regular auction listings it does not present me a custom details button.
Now I will get the morons at Auctiva to start earning the $15 a month I have to pay for this "service".
Mark