I have a Toshiba all in one desktop with windows 7. I was doing some work and all the sudden my keyboardand mouse stopped working. I thought, the batteries need to ne changed. But it wasn't working even after that. I forced the computer off by pressing the power button and restarted yet the keyboard and the mouse weren't working. I tried different usb ports but it didn't work. I even tried wired keyboard and mouse, but didn't work. The computer seems to be working since it starts without a prpblem. Please help.