The evil tacos Noo
Best Answer: your monitor controls should be locked if you are using a dvi or hdmi inputs since the gpu will choose how to resize the screen and if you are talking about in windows. restart your graphics program or cpu.
now if you are talking about buttons you hit on monitor and you are using a VGA and they are all grayed out other then contrast and brightness then you will need to have the monitor services due to a hardware glitch.
Source(s): The network Administrator. *grumbles* "network uptime