If you want to be sure, open the MAT in notepad and see what it affects. Ususally they only affect materials (that's why they're called MATs), but the MAT form can be used to scale, move, rotate or morph, etc. These are more properly known as MORs, SETs, and other weird names, but everyone calls them all MATs. If it has any reference to actors, body parts or whatever, then it's not just a MATerial file. Which might explain your problem. Check especially for any lines like 'bend', INKY or morph channels. mac PS The other way to do it is check ALL dial values, then apply the MAT and re-check to see if anything has changed. But that's only for people without a life....