This problem has been resolved in the Dapper final - not sure where along the path it was cleaned up. My apologies for dropping off the map after reporting (and I'll attach rather than include next time... still getting used to this whole launchpad thing. Not a huge fan.)
-- Cannot Enable DMA on Hard Drives after upgrade to Dapper Drake https://launchpad.net/bugs/31887 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs