Hi there, I have just installed Windows 7 ultimate and everything seems to have gone correctly. When i am prompted to choose a username to "distinguish" me on the network, the keyboard and mouse both do not work. This problem is very annoying as i have yet found nobody with a similar issue and there is really not alot i can do. I am using a wired USB connection for both the keyboard and mouse, I have tried the serial I/O bus (i think thats what its called) for my keyboard and another keyboard as well as trying a different mouse. The same problem happens. Any help is greatly appreciated as i must get my computer up and running as quickly as possible. Thankyou!!