Dofarlow,
You didn't have PMs enabled, so I hope you will see this here. All I can say is thanks for the info!!! Went to BB today, no receipt (went with the rebate form), just the original box. The girl at the desk tried to give me a stink about it being so old, then it missing the upc. She finally agreed to return it with a 15% restocking fee! After attempting to explain to her that they couldn't possibly restock it because it is bad, and they don't sell them any longer due to 3dfx being kaput. She grabbed a manager who enlightened her about their return policies for defective items (no restock), and the special circumstances with the 3dfx items.
Needless to say, got my store credit. Now just have to figure out what to spend it on since I already purchased a new card.
Any way. Thanks again. I really appeciate the help, I wouldn't have even thought about it.