I just recieved my 3000 in the mail. I tried the auto search for A mitsubishi and there was no code from their files. I tried copying from remote to remote. All I could get to work is the power buttons.
Volume and channel up and down did not copy at all.

I will admit that I have never programmed one of these before(that is a Pronto style remote). So maybe I did something wrong. Is this the same kind of problem that you are having?