Minecraft has worked with no problems for years....  Suddenly it will not load up the program anymore.....  See video attachment ...  It used to start with red screen with MOJANG logo, then to a white screen (blank), and then the words MINECRAFT appears and the sin wave loading bar....  NOW... the screen starts red with logo, goes to white, AND THEN goes to blank red screen that flashes black non stop... I even let it run for about 10 minutes and it still only flashed blank red and black screens....  

I even uninstalled it, and re-installed it on another drive....  same thing.... Please advise... I have put a lot of money into this program!!!!  Thanks in advance...