I just bought a brand new computer (upgrading from my Pentium 3 600mhz) and got the asus crosshair with an amd athlon64 3800+ (socket AM2) Now. I first installed windows and everything is fine, and just today ubuntu arives at my door (I ordered the free disks from the site) so I figure, better get some linux on this box. So I stick it in and boot. I come to the mmenu so I choose an option and I get a message like (not word for word): Kernel Panic. not syncing: IO-APIC + Timing doesn't work. Then something about booting in noapic. Please help me out. I realy wand this to work soon. Thanks!

I would guess that you need to boot the linux kernel with noapic as a kernel parameter. There should be an option to boot up with some extra params (maybe some sort of failsafe mode). One of these params should be noapic. See what happens then.