Thanks guys, I will give the ACPI option a shot. I know that Open Solaris had a problem related to ACPI when the computer had a SATA hard drive, because Dell sets the SATA up a little weird. Maybe this is similar. I will definitely give it a try and let you know how it goes.
Other than that, dual boot has been working great! Linux is my main OS, and I have Vista to fall back on for Microsoft evilness. I have a laptop running XP as well so I should be covered. I have another laptop running the same distro Ubuntu 9 so I'm good on all fronts.