hello, i'm new to this forum and seeking help! yesterday, everything on my computer was fine. today, the CD drive would not recognize a disk in it so as to write files, then i discovered that i also lost sound on my computer, and finally that every device attached to a usb port on my computer (a scanner, an external drive, a printer) would not work. also, when i tried to uninstall the CD drive as part of troubleshooting, device manager would repeatedly lock up and not respond. i don't know what caused this as macafee does not detect a virus and spysweeper did not find anything either. i m