I posted my fixed DSDT for BIOS 0610 on the sourceforge site (http://acpi.sourceforge.net/dsdt/view.php?id=552
). It's for 2 GB RAM, though, and I think a lot of people have 1 GB. Maybe I'll take out one of my RAM sticks and re-create it.
This DSDT finally allows my computer to turn the power off using the poweroff command. What a concept!