My computer stops responding at start up. I can get it to the windows XP screen where u see the green back going across the bottom but i cant get it any farther then that. it does it when i try to resinstall windows it does it when i try to do safe mode.. everything. I tried swapping out my ram and i tried swapping out my video card. i need help please... any other information just ask and ill give. thanx in advance for your help.