I'm posting this again only because my original post about this was "pruned" (went over 14-day without a new reply).
Anyway, as I had said before, I had tested this Monitor using my older computer with XP PRO OS, and found that from the Monitor's 7 buttons, only 2 were operational (POWER-ON & AUTO adjust).
Anyway, I've now tested same Monitor on another PC, my new DELL Hybrid (LOL...now that I've finally got it running), and found that the Monitor's problem continues. It actually did the very same thing as before as when I had it with older PC running XP.
Other than that the monitor works great...super bright & crisp picture.
Can anyone suggest any tests (simple DIY tests) that I can do myself to see what could be causing the problem and how I can fix it?
Thanks in advance for any help given