How do i get Windows Movie Maker to recognize my Memorex DVD burner?  I only have a HL-DT-ST CD-RW GCE-8483B built into my Dimension 2400 but for some reason it won't burn anything i make w/movie maker.  So i temporarily disabled my that and tried to burn something again hoping to try it w/my memorex DVD burner, however it then says there are no drives at all recognized.  So is there a way to get it to recognize my Memorex drive so that i can burn a Windows Movie?  or does anyone know if i should be able to on my regular drive?  any help would be much appreciated...