Whenever I try to use Windows Media, this message comes up "The procedure entry point GetIUMS could not be located in the dynamic link library MSDART.DLL." in a box and dosen't go away no matter how many times I click 'ok' or try to exit. So I cannot use Windows Media properly. Wenever I try to play a sound file, no sound comes out. Whenever I try to play a movie, only the sound is played but no pictures can be seen. How do I get rid of this message and use Windows Media player properly?