Using 7 build 7600. Wen I try to open a command window, I just get returned to my previous folder/desktop. If I try to open an extended window I get to the UAC, answer yes and again am returned. A check in Sys info reveals the command prompt is running but I can't see the window. I can have multiple instances of cmd.exe running but still no window. My video adapter is GeForce 7600 and I have no other known problems at this time. Thanks in advance.