*For Advanced Users Only*
*If you adjust these settings I will not provide support*
Navigate to /system/etc/sysctl.conf
As you can see there are some virtual memory tweaks already in there that you all have been testing (in V0.2) and probably didn't even know it (I warned you by stating "experimental" in my ROM topic).
These tweaks may or may not be causing your shutdown/reboot issues. I have raised the minimum clock speed to 250 and my shutdown/reboot issues completely stopped with me still using these tweaks.
You can Google "sysctl.conf" or use bit.ly/aKp0zg as a reference for things you can add to the file and tweak.
Enjoy, the added sysctl.conf support only found in Bugless Beast (for now until it's Kanged!)