Thank you Victor for your response. I have tried these ideas to no success. However I did find another clue. If I attempt to bring up my win/98 Sony on the VPA 150 LCD monitor, it will come up dark unless I had made a change to the colors in the display properties from let us say from 16 colors to let us say true color(32 bit)before the next power down/up sequence. If I have made a change it will only come up correctly one time and all succeeding attempts upon reboot will come up so dark that I cannot make out anything. However if I just remove the cable from the vpa 150 and plug it into the VA 520 the win/98 machine will always come up clean with no problem. If I plug the VPA 150(the problem monitor) into my Sony 1.8 gig win/xp machine, it too will always come up clean.
So there is something going on between the vpa 150 and the older 233mmx win/98 machine that is imcompatable, but yet again if I do a change to the colors of the display panel(by going settings, ctl panel, displays, settings before a reboot of this machine, the next time I come up on this monitor, all will be well. Incidently again the only way I can make this change is by cabling the win/98 machine to the va520(the monitor with no problem) as I cannot even see the control panel well enough to make the change using the vpa 150 as all will be too dark.
I know this explanation is complex, but this is the way it is. Again I have changed all drivers, and also booted from an older harddrive(that was created when all was still well) and switched vga cables. I suspect some voltage situation on the video/display card of the older machine to which the vpa150 is sensitive but the va520 is not.
Does anyone know how I can move this post to other conferences so others who may have any ideas will see it and perhaps have an idea?