Ok, about a month ago when i started up my keyboard the BIOS would "see" my keyboard and proceed to windows. When i arrived at the USER login page, my keyboard would simply not work. i used to be able to "fix" the problem by connecting the keyboard to different USB ports (after numerous tries). Unfortunately i had other problems with my computer so i had to reformat. I also purchased a new keyboard/mouse wireless set. i have not had this problem again until today. The my computer started up fine but the keyboard would not work at the login, but my mouse did ( the mouse and keyboard both connect to one receiver ) so i got my old "just in case" spare and plugged it in and it works fine. I tried to trouble shoot the keyboard myself but the program that came with the keyboard says its connected and fine, i was even able to set the keyboard to secure mode, which requires hitting a series of keys on it. I have tried numerous fixes and other websites but none have been able to offer me any help what-so-ever. my keyboard is a Logitech MX 3200 cordless keyboard and my backup is a MD # SK-2560 My computer spec's can be found here if it makes a difference. http://www.ghoztcraft.net/forums/index.php?showtopic=8213&hl= If anybody can help in anyway please do! -Edit- after reading some other topics i have almost the same problem as http://www.techspot.com/vb/topic61786.html only switching the keyboard (regardless of what keyboard is connected) works.