Process system is not responding

[Droid_Evo_8]

So I decided to change my ROM back to Monolith Theory (running CM7 1.5.2 before that) and all I got is this:

Is there any way to get around with this? I already waited for half hour and still comes back to that screen.

Please help. :'(

Thanx

 

[fatboy97]

Pull the battery... put it back in... hold down the volume down button, while this is held down push and hold the Power button...after about 5-10 seconds let the power button go, then the volume down button... this will boot you into hBoot (a white screen)... then select Recovery and reload your ROM.

***EDIT: Make sure you wipe your data, then cache, then dalvik cache... then load your new ROM.