Thanks "toasted"...I've also did some googling and found the same. Today, I just stuck with 30 minutes (level 11) on my eliptical and 20 minutes weight training on my lower body (quads/hams only). I'm hoping to strenthen the muscles around the knee so as to remove some of the strain off my left knee.
I've considered the fact that it IS my left knee and as such, I most likely have a muscle imbalance (right handed person here!

). Buoy....when I did my ham curls I could only curl 10 lbs!!!

My hams are so weak in comparison to my quads (which I curl 40 lbs)! I'm going to keep up with this routine until the pain completely goes away before returning to running.
No pain while on eliptical, but a little pain while doing standing hamstring curls on my machine...sooo...stay tuned......