Thank you Roger and Jo.

Roger I think I will sell the monitor as is.

Jo, the monitor did let me see something about strange hardware before it started blinking. Also, I had to hit the power button to shut the puter off so I could switch monitors. That could have caused it to some how crash. My puter I think shut down on it's on or something cause it went off twice. My puter was never shut off twice the wrong way so that may have had something to do with it crashing.

barbara