Mp4 player for micromax Q75

Hello,


i recently bought a micromax q75. I downloaded some mp4 video file formats from youtube onto my q75. However, when I play these video files using the q75 video player, I can hear only the audio (in crystal clarity) and cannot see the video, instead some funky green animation is being displayed. 3gp files are playing well with video and audio being displayed. please help!!