Hi, This is my first post! I joined because I'm currently experiencing problems with my PC. I have Dell Precision 380. I disabled the USB devise in the Devise Manager. I forgot that my mouse and keyboard are in USB. Now they wont work. When I restart the computer I cant log in because the mouse and keyboard wont work. I got USB to PS/2 adapters to plug them to PS/2 but still they wont work. At startup it says KEYBOARD ERROR when I plug to PS/2. Please help! Thanks!