Um, frames and mhz and two different things.I had done that, but everything was just fine before the 1.5 update, now it is giving me numbers. Both of the numbers in the upper right are slightly off from one another. For an expinsive monitor, it's still a pile of junk. Wont go beyond 60mhz. I will have to try an older monitor and see if that works. My computer also likes to shut down the screen, but I can still hear the games being played. The cooling unit starts to rev up and the machine is making allot of noise when it happens, but the place that built it says that the computer is fine. I will be taking it to another computer shop and have them look at it. The only things that seem to work are the keyboard, speakers and the mouse. Gotta start with the good and work from there
Frames is how many images per second a video game generates and sends to the monitors - the quality of the monitor has zero impact on this.
Mhz are, IIRC, the refresh rate of images per second a monitor is capable of.
As far as I am aware while it is pointless to have frame rate exceeding a monitor's mhz capability, 60 frames per second is perfectly adequate for most gaming purposes for most gamers.
(At competive E-Sports levels for some games you might find actually players who benefit from higher frame rates and ultra-low latencies in a significant manner)
The screen going dark and cooling fan starting up sounds like Windows trying enter an energy saving mode of some kind (The screen going dark) then realizing that there something actually running and starting everything again.