This is only happening on one of our drafter's computers. He is a command alias user and when he hits the spacebar after typing in his 1 or 2 letter alias, it will launch that command and then display that same letter in the command prompt. For example, for Erase; he types "E" then the Spacebar, it will launch the Erase command, but then will automatically place an "E" in the command prompt within the Erase command. It happens quite frequently, but most importantly, not all the time, which sort of tells me it's a glitch. Any ideas would be greatly appreciated.