Hello. I'm wondering what the final solution was as I'm having the exact same problem. One addition, I noticed the mac running hot and see some damage to the plastic strip that runs along the hinged side. The damage may have been there previously and I just noticed it, or the machine could have gotten hot enough to melt the edge of the plastic. I'm not at all technically savvy, but I've been using macs since the beginning. If any answer could be broken down into layperson's terms, that would be fantastic. Thanks in advance! MHP