Not now. But I did encounter some problems with the MyBB database (which is far, far better than phpBB any day of the week) at http://rockoids.com/forums and reported it in the Support area of the DreamHost Control Panel. It's still somewhat slow, so maybe there's something that's causing CPU spikes on one or more of those servers.
Maybe you should report a problem too if it continues.
Co-Host, The Paracast