I have now confirmed that Ubuntu 6.06.1 adds support for the VT8237A southbridge, as I can now use my SATA drivers without any issues, so its all fixed now :)
-- sata_via kernel module lacks support for VIA VT8237A southbridge SATA in Dapper https://launchpad.net/bugs/53615 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs