Sims2 Problems

[pyrokinesis]

I installed sims 2 and i was using the no cd patch fine.
I since then installed battle for middle earth (wich works just fine). but since then when i try to play Sims2 i get the "CD/emulation software" error message. I uninstalled Daemon tools, Alchohol, clonecd. Still get error.
I try playing with the original disk but same error.
After removing and reinstalling Sims2 i get Error "please insert original disk."
Even when using my original CD. Any ideas?

[Starrider]

remove the registry entry HKey curr User> Software> Slysoft or Elorabytes root (safe it first by export) play the game and then execute the exportet *.reg.

[pyrokinesis]

Thanks :)