Ok, since it works even after shutdown down for a short time, it's not a driver issue, or a config problem.
<oops. Just realized that you're talking about the monitor, and it's drivers, not the VC card. Left in the comments regarding that just for the heck of it.>
When you are restarting, the monitor stays on. The question is, do you shut off your monitor when you shutdown the PC? I'll bet you do, or at least when it's going to be off for more than a short time. I'll bet it's a problem with the monitor itself. Windows depends on info it gets from it to know what it is and what drivers to load. The moire would hint at a monitor problem as well.
The monitor remembers the screen adjustments you make for every resolution that you have run and (of course) made adjustments to. After you get the right drivers, can you change screen resolutions and still have the screen the way you set it? If not, that's the monitor.
The scan rate depends on the driver settings. You can tell it to use a specific refresh rate, or the optimal rate defined by the driver for that monitor. If the driver is the generic one, the refresh will be set to 60hz, kind of a "safe mode". When the new driver is loaded, you might have to go back in and make any tweaks that you have done, at least for the refresh.
<This is what I wrote when I thought it was the VC causing the problem>
This has to be a problem with volitile memory. I really doubt the cmos could have anything to do with it, but just to be thourough, make sure nothing is changing there. You don't have to go into the BIOS to correct anything right? That leaves the VC.
Go back to my first post. Do you have a way to get hold of another card of this type? Better yet, is it new enough that you can trade it in as defective? This would let you rule out that as a source if it doesn't fix the problem.
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