I have the same problem. And yes I have done an extensive search and the only post I can find that talks about the specific problem is this one. Not even in the one you mentioned mnh2410.
I bought exactly the type of RAM that everyone has been saying to buy. BUT I bought it from a website that stated everything but the CL3 part. I called phone number on the website and they said that it was CL3 so I bought it.
The fact is that it doesn't work and I'm going to call them and try and send it back but if anyone knows what the reason is that would help. So I can say "you didn't send me CL3" or "it is just faulty" et cetera.
g30metro, did you solve your problem?
Thanks in advance.