First of all, I want to thank everyone for their very helpful replies concerning this! I appreciate it very much! :)

To follow Miss Nancy's suggestion, I'm going to post a picture of what happens after I've loaded an "eyes" morph onto M4. The problem area starts on the bottom lash near the lacrimal and works it's way towards the middle of the lower lid. Upon closer inspection, I'm not sure if I caused that with the morph or if it's an eyelash problem. I thought it looked normal in ZBrush when I was working on it earlier.

--R.