Roger, what were your multibeast settings? I have the MSI board with an i7 860 chip. I can't complete a boot into my lion installer partition, it just restarts. Going from my initial multibeast settings (10.6.2 and on):
MULTIBEAST
easybeast supported
Disk Utilities
Audio: ALC889x2
Disk: Jmicron, IOAHCIBlockStorageInjector
Graphics: n/a
Network: RealtekR1000SL
Non- DSDT: Evoreboot, legacyAppleRTC, NullCPUManagement
Musc: fakesmc, IOUSBFamily 10.6.2
Chameleon
com.apple.boot.plist: 32-bit Apple Boot Screen
smbios.plist: MacPro4,1
Theme: Standard Chameleon
OSX86 Software
Remove /System/Library/Extensions/AppleUpstreamUserClient.kext