Unconfirmed transactions from a while back - What going on?

[nebulus]

So I took a break from botching for about 4 months and when I got back my balance got lower. I noticed that there are a bunch of unconfirmed transactions from a while back.
The total for that is about 1.64795939 not a big deal but still what is going on here. Here is one of those transactions https://blockchain.info/tx/b268fc95c0111af48deafe722f07b6ae141fde342fed5e424e72715d72ff21ff back when I used to mine with p2pool. I have about 5 of these.

[Stephen Gornick]

So I took a break from botching for about 4 months and when I got back my balance got lower. I noticed that there are a bunch of unconfirmed transactions from a while back.
The total for that is about 1.64795939 not a big deal but still what is going on here. Here is one of those transactions https://blockchain.info/tx/b268fc95c0111af48deafe722f07b6ae141fde342fed5e424e72715d72ff21ff back when I used to mine with p2pool. I have about 5 of these.

The block was orphaned.

 - http://blockchain.info/block-height/178293

Some other miner got the coins for that block.

[nebulus]

Got it! p2pool and some other miner pool found the block but p2pool didn't solve it on time. Thanks!