No, no, that won't matter, neither will letting it sleep. I thought you said you waited until everything went out inside, and again if you watch the video, that's not correct either.
Here is a guy resetting an ML, see if that helps (foreign language, but you can see the steps he is doing).
http://www.youtube.com/watch?v=-fNd9miQlyo&feature=related
Maybe there really is a problem and yours won't reset for some odd reason. But I don't think so.