Yes I have. The problem is that there is something wrong with my computer. A lot of times when I turn it on, it wont boot. Like my dell logo wont appear. If I keep trying to turn it on, it eventually works. When I called dell techs, they told me to install the new bios, but got errors. My warranty expired, so I have to pay for them to send someone. But without me knowing, some of my drivers weren't installed and that's why the bios flash didn't work. Now when I install the bios, my computer has to restart, but every time I restart my computer, even if I'm not trying to install the bios, the computer has a black screen as if its off but its not. I have no idea what to do. Any advice would be great.