Sometimes paypal withhold payment until the buyer can confirm the items are working. Happened to me before. I cancelled the transaction and sold it to someone privately.
Tension is correct. If you don't sell too often on eBay and you come up with a large sale, you won't get the PayPal funds until the buyer indicates that he as received and is happy with the goods. I bought a $1200 item from a guy in California and he had to wait for his money until I indicated that the item arrived in good condition. This should not happen for high volume, high $$ sellers -- nor will it happen for small sales.
