I have a 2 year old Dell Ispiron One 2305. About 2-3 times a day the screen just goes black. It is a lighter, back-lit black, compared to the dark black when the machine is completely off. The power button is a constant white when this happens.

We have an old serial port device that will not communicate with it's software properly on an Optiplex 790/7010 running Windows 7 (Enterprise x64). On a Optiplex 755 running Windows 7 (enterprise x64) it works fine.

I have an Inspiron 17R laptop, purchased new two weeks ago, that now will not boot. It powers on, briefly shows the Dell screen, then the screen goes to blue. I have run the hardware diagnostics and it shows no problems or error messages. Pressing F8 does nothing.