I am not very tech savvy so please bear with me. I have a Dell Inspiron 530 tower with Windows Vista. When I play Minecraft it runs terribly slow. Minecraft even suggested in the title screen to install a new graphics/video card. I have no knowledge of graphics cards and I would like help picking out a new card. I would not like to spend over $100 but I will stretch if need be. I would like it to play Minecraft exceptionally well and other games such as Slender and Outlast. I was also wondering if it was possible to upgrade to windows 7 or 8 (7 preferably as I am not a big fan of 8) although that is not what I am looking for. Also, the computer freezes a lot and was wondering if the new card would fix that or does it have to do with something else. I realize there will be a lot of questions and I am prepared to answer them. I apologize for making your job harder but I appreciate any help.