monitor color

[Guest]

my computer was down for 2 months and when i got it fixed and turned on the
monitor it is a greenish grayish blue before it was fine how do i fix this
and thank u for your help monitor is a c p mv700

 

[Guest]

never mind i found out my problem my monitor was not connected to computer
right thanks to a 15 year old who thinks they know everything about it but
it's that age huh some do some don't thank you