Hi Visimo
When exporting a model from max, the exporter will smooth over any welded vertices up 90° between faces. The solution is to select the object, goto EDIT MESH in the object modifiers panel, then click the SELECTION: POLYS button. Then shift-select the polygons in the object to the point where you want a hard edge i.e not smoothed over. Now click DETACH button under the edit geometry section int the same panel. In the "detach" window that appears, select the DETACH TO ELEMENT box, click ok. Now you have a single object that has two (or more) elemnts. The exporter will not smooth across seperate elements, as the coincident vertices are not welded.
Now go to store, get BEER. drink one BEER per seperate element.
Repeat as neccessary, Good Luck!
Lord Schtupp