Ive had this computer for 4 months. I never had problems before with hooking up laptop to my flat screen tv. I would watch netflex movies that way. Now all of a sudden I am not getting sound to my tv. just picture. I have a cat that just loves to walk accross my keybord. and i have no clue what any of these buttons are. Is it possable that she changed this by walking on keys. Now I cant even find the manual for it HELP. flairbear56@gmail.com