THIS IS MY FIRST TIME TO USE VEGAS 4 OR ANY NLE SOFTWARE FOR THAT MATTER. I WANTED TO OPEN AN MPEG FILE (BY DOUBLE CLICKING IT OR DRAGGING IT TO THE VIDEO TRACK) BUT I KEEP GETTING AN ERROR MESSAGE THAT'S SAYING SOMETHING LIKE THE PLUG IN FORMAT WAS NOT PROPERLY INITIALIZED. IS IT POSSIBLE TO OPEN AN MPEG FILE IN V4? I DON'T KNOW MUCH ABOUT THESE THINGS AS I AM NEW TO NON LINEAR VIDEO EDITING.