If you're mining through slush's stratum proxy (e.g. with ASICMiner blades or cubes), there's a known problem with p2pool (and this gets passed through Multipool) - it won't work with that proxy.  Some have suggested that it's best to run with the bfgminer proxy, but I'm not sure if that gets around the p2pool problem since I can't run it more than 6-8 minutes before it declares the devices SICK and restarts them, killing my hashrate.  This latter is a known problem with certain devices, wireless, and QoS - it's a tough nut to crack, and I haven't had time to troubleshoot.

We are all deluding ourselves that we have made lots of money on bitcoin going up. I made the mistake of moving my coins to MtGox in case I wanted to sell some. Now that I don't, I moved them back to my local wallet. That was 4 days ago, they have disappeared from my MtGox account but aren't in my wallet, nor even on the block chain. The support tickets have gone unanswered. So  not only can we not get fiat out, we can't even get BTC out. All these gains are imaginary if there is no way to use a gateway to actually withdraw in either currency..