kernel panic in AppleEFIRuntime

[eswenson]

Hi installed Zephyroth 10.5.2 Rev2 on my AMD system and when I boot with -v -f -x (can't boot without -f, not sure about -x), I get:

panic (cpu 0 caller 0x001A7BED):
Kernel trap 0x1e49d43c type 14=page fault, registers ...
Kernel loadable modules in backtrace (with dependencies)
com.apple.driver.AppleEFIRuntime(1.1.0)@0x1e49c000->0x1e49efff

Any ideas? I was able to successfully install this DVD earlier and was able to run fine (until I stupidly installed the iPhone SDK with its CHUD support, which completely trashed my system. Now I'm unable to reinstall and run despite having erased, removed, and re-created my partitions.

Any suggestions?