No Audio, cannot start Windows Audio Endpoint Builder service, RPC server unavailable

I had the audio functioning fine, then I checked off a few services that are safe to set to manual, and now I am having problems with my audio. I went over all the necessary services that need to be started and all of them are set to automatic and running except for the Audio enpoint builder service, windows audio service, and the creative audio service. 

when trying to start windows audio endpoint builder service I get error 1722: the RPC server is unavailable.

I cannot start the windows audio service either. I get a 1068 error message: The dependancy service or group failed to start.

I tried changing the local system account log in info and now I'm getting a different error message: 1079 the account specified for this service is different from the account specified for other services running in the same process.

I tried uninstalling my sound card drivers (creative audigy 2), my onboard sound drivers (AC97) and reinstalling them both, no luck.

I am running Win 7 Ultimate 64

I am also having a problem with my USB keyboard going dead. the backlight stays on, but none of the keys will respond. I have to unplug the USB and plug it back in and wait for it to reinstall. It appears that if I don't use the keyboard for a while it powers down, but the lights stay on. I disabled USB power saving in the power profile and the problem still occurs. My mouse doesn't turn off, so I think it's not related to my power profile. It is a Saitek Gamers keyboard (USB).

Any help would be appreciated.

Thanks,

Alex

eta*

DCOM Server Process Launcher                     started, automatic

Plug and Play                                                     started, automatic

Multimedia Class Scheduler                           started, automatic

Remote Procedure Call (RPC)                          started, automatic

Windows Audio Endpoint Builder                 not started, automatic (error message 1722)

Update#2 I was able to get the right login info to get rid of the 1079 error msg.

I typed in NT AUTHORITY\LocalService and left the password blank.

now I get the same error msg as endpoint builder... RPC server is unavailable.

Edit# 3

I enabled power and everything started to work as normal.

except I still have the keyboard problem.

thanks,