I don't think it's bonuspool. The common element was that we both had a pool go down. I use Eclipse and mtred, and when Eclipse went down this morning, I manually added mtred because it wasn't in the config at the time. Later on, I realized Eclipse had come up and was up for awhile, but the miner was doing -exactly- what Morblias was saying: except that I switched it myself, and it was failing to switch back. Actually, I didn't even switch it - I just added mtred manually while it was running, and it went over to mtred on it's own. Of course at first I expected the errors it was giving... because the pool was down. I even checked using ping.eu's port checker function and 8337 on eclipse was closed for all Eclipse servers. Later on when I knew the pool was up, the miner was doing exactly the same thing. Sitting on mtred, and saying Eclipse was down. I even checked again with ping.eu to make sure, and indeed Eclipse was up. So I just closed the miner, repoened it, and voila, connection to Eclipse.
I think this is pretty solid evidence