Welcome to the forums!

the classic reason you would be having that problem is due to faulty or incomplete wiping before flashing the rom.

What recovery do you have? Amon ra recovery is reliable and oft suggested in here.

I think if you were to use that or what ever recovery you do have and wipe thoroughly and make sure you have a good dl of the rom and re flash it, that things will work out well.

 

I don't know how to tell you to wipe well with it. do you have any nands made with clockwork? there is an amon ra style recovery that supports them and amon ra nands too, want it?

 

Amon Ra Style Recovery for Supersonic - xda-developers

 

That really isn't the best link, there is another one I can never find.

I will though.

the stock rom is actually great. I just put the anthrax one on it and it is doing ok.

http://www.androidfilehost.com/main...QualComm_B_Series_Base - SUPERSONIC (EVO 4G)/

link to kernel, still looking for better recovery link.

 

Ok, still trying to find that link, are you going to change your recovery?

Ok, finally found it again. file in here.

http://www.androidfilehost.com/main...QualComm_B_Series_Base - SUPERSONIC (EVO 4G)/

Do you know how to rename it and stuff?

 

The new anthrax kernel is honestly probably the best one out there right now for performance. WIth its support for beats it will be the kernel of choice for developers going forward

 

+1 on anthrax. My evo is on amphetamines at 768 MHz