OS Vista Ultimate SP1 Ok here is the issue USB Legacy is enabled in bios for those that will ask first. I have Microsoft wireless keyboard and mouse. I have a receiver that has a PS2 connection for the keyboard and usb for the mouse (Wireless Comfort Keyboard 1.0A). Often I have an issue where when I get to the login screen the keyboard will not work but the mouse does not. I have used on screen keyboard and under devices the keyboard is not showing. On instances where it works it will show up as PS2 Keyboard. Ok so I thought get a new keyboard and mouse so in comes the wireless keyboard 3000 the receiver on it has 1 usb connection. On it I can not get to work at all when I get to the pre startup screen where the green progress bar is at the bottom the lights on the receiver go off and from then on nothing. I try connecting the keyboard and mouse and nothing it will not successfully get a connection. Any thoughts.