Okay, I'm sorry if this question has already been answered before. I looked and only found one question similar to this one but it was never answered.
After I turn on my computer/monitor or "wake" the screen from the power saving mode, my monitor will go blank and the orange light will flash. I turn the monitor off, wait a few seconds and then turn it back on again. But it will go blank again, usually whenever I open a new window (and sometimes when I haven't done anything at all). It will continue to do this for about half an hour, and then it will work fine. But lately, it seems, that the duration gets a bit longer each time.
My monitor is a Sony Trinitron HMD-400, which I bought in 2001. I attempted to try another monitor on my computer but the screen remained black (power light was on though). It is an older version (Magnavox) than my Sony.
I would really appreciate any help I can get! Thanks..