I bought a new computer with Windows 7 and it would not come out of sleep mode, then I finally got it to do that and it would not come out of sleep mode. I reformatted it and it would not go into sleep mode again so I took it back. I got another computer and I am having the same sleep mode issues as well as it sometimes brings up the Windows Boot Manager just as the other computer would do. Can someone help? The computer was tested last time and I was told it was not the computer.