There are two coinbase transactions in 2 consecutive p2pool blocks, of which only the earlier one is shown in bitcoin-qt. When I run "bitcoind listtransactions", both are shown but in the graphical UI, only the earlier one is shown.
Here's a screenshot of bitcoin-qt showing just one of the transactions. http://i.imgur.com/ZUJHo.png
Here's links to the blocks in question: http://blockchain.info/block-index/852772/000000000000068c6ddbae5bec15c975671d9ef40a0b49fac106f28c990d326d http://blockchain.info/block-index/852769/00000000000002b87f51a4e2476582ad8d764c3a731e3e0831998fe4a5be8c5e
details of the transactions in question:
<pre> jojkaart@mei:~$ bitcoind gettransaction d4def5831b9bccca45d7c66facbcd539c6f094624deecfd6815b997b1a188de3 { "amount" : 0.00000000, "confirmations" : 15, "txid" : "d4def5831b9bccca45d7c66facbcd539c6f094624deecfd6815b997b1a188de3", "time" : 1327511811, "details" : [ { "account" : "", "category" : "immature", "amount" : 0.13328261 } ] } jojkaart@mei:~$ bitcoind gettransaction 4fb458365c6812f95ec65da50efa15723c5a32d74d73b244b91e4227d51ef61f { "amount" : 0.00000000, "confirmations" : 14, "txid" : "4fb458365c6812f95ec65da50efa15723c5a32d74d73b244b91e4227d51ef61f", "time" : 1327511849, "details" : [ { "account" : "", "category" : "immature", "amount" : 0.13326779 } ] } </pre>