|Thanks for your response!|
Did you do anything just prior to having this problem, such as install new software or hardware?
Did you move the system from one location to another & possibly jar something loose during the move?
No, but I have dogs that have knocked loose plugs before and I checked Everything seems to be well connected inside & out.
Did you have a power failure, power surge or pop a circuit breaker?
Not that I know of. It was more of a turned it off & the next day came to get on it and wouldn't work.
Do you hear any beeps at startup?
No beeps. (i checked again to be sure) It just sounds like its coming on as normal. If I unconnect the monitor the Self-Test will come on and say it is working check connection. I plug it back in to the computer or the new card and it goes yellow light, screen black.
When's the last time you opened the case & cleared out any accumulated dirt/dust?
When it first started doing this it had been done about week before and Iv gently done so since then while trying to figure out what's wrong.